International Fire Code--2021

MARINAS involved, shall be provided and maintained in accordance with Section 906. 3604.5 Communications. A telephone not requiring a coin to operate or other approved, clearly identified means to notify the fire department shall be provided on the site in a location approved by the fire code official. 3604.6 Emergency operations staging areas. Space shall be provided on all float systems for the staging of emergency equipment. Emergency operation staging areas shall provide a minimum of 4 feet wide by 10 feet long (1219 mm by 3048 mm) clear area exclusive of walkways and shall be located at each standpipe hose connection. Emergency operation stag- ing areas shall be provided with a curb or barrier having a minimum height of 4 inches (102 mm) and maximum space between the bottom edge and the surface of the staging area of 2 inches (51 mm) on the outboard sides of the staging area. An approved sign reading “FIRE EQUIPMENT STAG- ING AREA—KEEP CLEAR” shall be provided at each staging area. SECTION 3605 MARINE MOTOR FUEL-DISPENSING FACILITIES 3605.1 Fuel dispensing. Marine motor fuel-dispensing facil- ities shall be in accordance with Chapter 23. 36-2 2021 INTERNATIONAL FIRE CODE® EDUFIRE.IR Telegram: EDUFIRE.IR

CHAPTER 37 COMBUSTIBLE FIBERS User note: About this chapter: Chapter 37 establishes the requirements for storage and handling of combustible fibers, including animal, vegetable and synthetic fibers, whether woven into textiles, baled, packaged or loose. Operations involving combustible fibers are typically associated with salvage, paper milling, recycling, cloth manufacturing, carpet and textile mills and agricultural operations, among others. The primary hazard associated with these operations is the abundance of materials and their ready ignitability. SECTION 3701 in or near farm structures located outside closely built areas. GENERAL A permit shall not be required for agricultural storage. 3701.1 Scope. The equipment, processes and operations 3703.5 Dust collection. Where located within a building, involving combustible fibers shall comply with this chapter. equipment or machinery that generates or emits combustible 3701.2 Applicability. Storage of combustible fibers in any fibers shall be provided with an approved dust-collecting quantity shall comply with this section. and exhaust system. Such systems shall comply with Chap- 3701.3 Permits. Permits shall be required as set forth in ter 22 of this code and Section 511 of the International Section 105.5. Mechanical Code. SECTION 3702 3703.6 Portable fire extinguishers. Portable fire extin- DEFINITIONS guishers shall be provided in accordance with Section 906 as 3702.1 Definitions. The following terms are defined in required for extra-hazard occupancy protection as indicated Chapter 2: in Table 906.3(1). BALED COTTON. BALED COTTON, DENSELY PACKED. 3703.7 Sources of ignition. Sources of ignition shall comply COMBUSTIBLE FIBERS. with Sections 3703.7.1 and 3703.7.2. COTTON. SEED COTTON. 3703.7.1 Smoking. Smoking shall be prohibited and “No Smoking” signs provided as follows: SECTION 3703 GENERAL PRECAUTIONS 1. In rooms or areas where materials are stored or 3703.1 Use of combustible receptacles. Ashes, waste, dispensed or used in open systems. rubbish or sweepings shall not be placed in wood or other combustible receptacles and shall be removed daily from the 2. Within 25 feet (7620 mm) of outdoor storage or structure. open use areas. 3703.2 Vegetation. Grass or weeds shall not be allowed to accumulate at any point on the premises. 3. Facilities or areas within facilities that have been 3703.3 Clearances. A minimum clearance of 3 feet (914 designated as totally “no smoking” shall have “No mm) shall be maintained between automatic sprinklers and Smoking” signs placed at all entrances to the facil- the top of piles. ity or area. Designated areas within such facilities 3703.4 Agricultural products. Hay, straw, seed cotton or where smoking is permitted either permanently or similar agricultural products shall not be stored adjacent to temporarily shall be identified with signs desig- structures or combustible materials unless a clear horizontal nating that smoking is permitted in these areas distance equal to the height of a pile is maintained between only. such storage and structures or combustible materials. Stor- age shall be limited to stacks of 100 tons (91 metric tons) Signs required by this section shall be in English as a each. Stacks shall be separated by not less than 20 feet (6096 primary language or in symbols allowed by this code and mm) of clear space. Quantities of hay, straw, seed cotton and shall comply with Section 310. other agricultural products shall not be limited where stored 3703.7.2 Open flames. Open flames and high-tempera- ture devices shall not be used in a manner that creates a hazardous condition. High-temperature devices and those devices utilizing an open flame shall be listed for use with the materials stored or used. SECTION 3704 LOOSE FIBER STORAGE 3704.1 General. Loose combustible fibers, not in suitable bales or packages and stored outdoors in the open, shall comply with Section 2808 of this code. Occupancies involv- ing the indoor storage of loose combustible fibers in amounts 2021 INTERNATIONAL FIRE CODE® 37-1 EDUFIRE.IR Telegram: EDUFIRE.IR

COMBUSTIBLE FIBERS exceeding the maximum allowable quantity per control area point of the piles and projecting not less than 1 foot (305 as set forth in Section 5003.1 shall comply with Sections mm) beyond the sides of the piles. 3704.2 through 3704.6. 3705.2 Special baling conditions. Sisal and other fibers in 3704.2 Storage of 100 cubic feet or less. Loose combustible bales bound with combustible tie ropes, jute and other fibers fibers in quantities of not more than 100 cubic feet (3 m3) that swell when wet, shall be stored to allow for expansion in located in a structure shall be stored in a metal or metal-lined any direction without affecting building walls, ceilings or bin equipped with a self-closing cover. columns. A minimum clearance of 3 feet (914 mm) shall be required between walls and sides of piles, except that where 3704.3 Storage of more than 100 cubic feet to 500 cubic the storage compartment is not more than 30 feet (9144 mm) feet. Loose combustible fibers in quantities exceeding 100 wide, the minimum clearance at side walls shall be 1 foot cubic feet (3 m3) but not exceeding 500 cubic feet (14 m3) (305 mm), provided that a center aisle not less than 5 feet shall be stored in rooms enclosed with 1-hour fire barriers (1524 mm) wide is maintained. constructed in accordance with Section 707 of the Interna- tional Building Code or horizontal assemblies constructed in accordance with Section 711 of the International Building Code, or both, with openings protected by an approved opening protective assembly having a fire protection rating of 3/4 hour in accordance with the International Building Code. 3704.4 Storage of more than 500 cubic feet to 1,000 cubic feet. Loose combustible fibers in quantities exceeding 500 cubic feet (14 m3) but not exceeding 1,000 cubic feet (28 m3) shall be stored in rooms enclosed with 2-hour fire barriers constructed in accordance with Section 707 of the Interna- tional Building Code or horizontal assemblies constructed in accordance with Section 711 of the International Building Code, or both, with openings protected by an approved opening protective assembly having a fire protection rating of 11/2 hours in accordance with the International Building Code. 3704.5 Storage of more than 1,000 cubic feet. Loose combustible fibers in quantities exceeding 1,000 cubic feet (28 m3) shall be stored in rooms enclosed with 2-hour fire barriers constructed in accordance with Section 707 of the International Building Code or horizontal assemblies constructed in accordance with Section 711 of the Interna- tional Building Code, or both, with openings protected by an approved opening protective assembly having a fire protec- tion rating of 11/2 hours in accordance with the International Building Code. The storage room shall be protected by an automatic sprinkler system installed in accordance with Section 903.3.1.1. 3704.6 Detached storage structure. Not more than 2,500 cubic feet (70 m3) of loose combustible fibers shall be stored in a detached structure suitably located, with openings protected against entrance of sparks. The structure shall not be occupied for any other purpose. SECTION 3705 BALED STORAGE 3705.1 Bale size and separation. Baled combustible fibers shall be limited to single blocks or piles not more than 25,000 cubic feet (700 m3) in volume, not including aisles or clearances. Blocks or piles of baled fiber shall be separated from adjacent storage by aisles not less than 5 feet (1524 mm) wide, or by flash-fire barriers constructed of continuous sheets of noncombustible material extending from the floor to a minimum height of 1 foot (305 mm) above the highest 37-2 2021 INTERNATIONAL FIRE CODE® EDUFIRE.IR Telegram: EDUFIRE.IR

CHAPTER 38 HIGHER EDUCATION LABORATORIES User note: About this chapter: Chapter 38 addresses the unique needs of laboratories in higher education institutions. These academic institutions often have chemistry, biology, medical, engineering and other laboratories where hazardous materials are used. This chapter addresses both new and existing buildings and new and existing laboratories. Applying the general hazardous material provisions has been difficult because of the way these laboratories operate. Often there are many small laboratories with very small quantities of hazardous materials that individ- ually do not exceed the maximum allowable quantities (MAQs). In aggregate, the quantities will exceed the MAQs and could result in the need for a Group H occupancy classification. However, it is believed that the lower density of hazardous materials often mitigates the overall risk. This chapter also addresses the use of certain materials typically prohibited for existing buildings not protected throughout with a sprin- kler system. These allowances come with certain safety measures such as the use of storage cabinets and fume hoods. Note that Section 428 of the International Building Code© addresses the construction requirements found in this chapter for laboratory suites. SECTION 3801 through 5001.3.3.17. Such documentation shall be GENERAL prepared by laboratory safety personnel or special experts, and shall be made available in the workplace for 3801.1 Scope. Higher education laboratories complying with reference and review by employees. Copies of such docu- the requirements of this chapter shall be permitted to exceed mentation shall be made available to the fire code official the maximum allowable quantities of hazardous materials in for review upon request. control areas set forth in Chapter 50 without requiring clas- sification as a Group H occupancy. Except as specified in 3803.1.2 Chemical handling. Receiving, transporting on this chapter, such laboratories shall comply with all applica- site, unpacking and dispensing of hazardous materials ble provisions of this code and the International Building shall be carried out by persons trained in proper handling Code. of such materials and shall be performed in accordance with Chapters 50 through 67, as applicable. 3801.2 Application. The provisions of this chapter shall be applied as exceptions or additions to applicable requirements 3803.1.3 Warning signage. Warning signs shall be of this code. Unless specifically modified by this chapter, the provided in accordance with Section 5003.5. storage, use and handling of hazardous materials shall comply with the provisions in Chapters 50 through 67 and 3803.1.4 Maintenance of equipment, machinery and the International Building Code for quantities not exceeding processes. Maintenance of equipment, machinery and the maximum allowable quantity. processes used with hazardous materials shall comply with Section 5003.2.6. SECTION 3802 DEFINITIONS 3803.1.5 Time-sensitive materials. Containers of materi- als that have the potential to become hazardous during 3802.1 Definitions. The following terms are defined in prolonged storage shall be dated when first opened, and Chapter 2: shall be managed in accordance with NFPA 45, Section 8.3.4.4.1. CHEMICAL FUME HOOD. 3803.1.6 Hazardous wastes. Storage, dispensing, use GLOVE BOX. and handling of hazardous waste shall comply with this chapter and Chapters 50 through 67, as applicable. HIGHER EDUCATION LABORATORY. 3803.1.7 Automatic fire-extinguishing systems. New LABORATORY SUITE. laboratories in new or existing buildings that increase maximum allowable quantities of hazardous materials SPECIAL EXPERT. based on the requirements in this chapter shall be equipped throughout with an approved automatic sprin- SECTION 3803 kler system in accordance with Section 903.3.1.1. GENERAL SAFETY PROVISIONS 3803.2 Hazardous materials storage and use. Hazardous 3803.1 Scope. Laboratories and laboratory suites applying materials storage, handling and use in laboratories and labo- the requirements of this chapter shall be in accordance with ratory suites complying with Chapter 38 shall be in the general safety provisions in Sections 3803.1.1 through accordance with this chapter and Chapters 50 through 67. 3803.2.2. 3803.2.1 Container size. The maximum container size 3803.1.1 Chemical safety reviews. Operating and emer- for all hazardous materials shall be 5.3 gallons (20 L) for gency procedures planning and documentation shall be liquids, 50 pounds (22.7 kg) for solids, 100 cubic feet provided in accordance with Sections 5001.3.3.11 (2.83 m3) for health-hazard gases per Table 5003.1.1(2) 2021 INTERNATIONAL FIRE CODE® 38-1 EDUFIRE.IR Telegram: EDUFIRE.IR

HIGHER EDUCATION LABORATORIES and 500 cubic feet (14.15 m3) for all other gases in accor- be constructed in accordance with Section 707 dance with Table 5003.1.1(1). of the International Building Code and hori- zontal assemblies shall be constructed in Exception: Hazardous waste collection containers, for accordance with Section 711 of the Interna- other than Class I flammable liquids and Class II tional Building Code. combustible liquids, are permitted to exceed 5.3 gallons (20 L) where approved. Exception: Where an individual laboratory suite occupies more than one story, the fire- 3803.2.2 Density. Quantities of Class I flammable liquids resistance rating of intermediate floors in storage and use shall not exceed 8 gallons (30 L) per contained within the laboratory suite shall 100 square feet (9.29 m2) of floor area. Densities shall be comply with the requirements of the Inter- reduced by 25 percent on the 4th through 6th floors of the national Building Code. building, and by 50 percent above the 6th floor. Regard- less of the density, the maximum allowable quantity per 2. Separations as required in Section 508 of the control area or laboratory suite in accordance with this International Building Code. chapter, shall not be exceeded. 3804.1.1.2 Separation from other laboratory suites. Exception: Designated hazardous waste collection Laboratory suites shall be separated from other labo- areas or rooms within a laboratory suite or control ratory suites in accordance with Table 3804.1.1. area are not limited, but such materials shall not exceed the maximum allowable quantity per labora- 3804.1.1.3 Floor assembly fire resistance. The floor tory suite or control area. assembly supporting laboratory suites and the construction supporting the floor of laboratory suites SECTION 3804 shall have a fire-resistance rating of not less than 2 LABORATORY SUITE CONSTRUCTION hours. 3804.1 General. Where laboratory suites are provided, they Exception: The floor assembly of laboratory suites shall be constructed in accordance with this chapter and and the construction supporting the floor of labora- Section 428 of the International Building Code. tory suites are permitted to be 1-hour fire-resistance- rated in buildings of Types IIA, IIIA and VA 3804.1.1 Laboratory suites. The number of laboratory construction, provided that the building is three or suites and percentage of maximum allowable quantities fewer stories. of hazardous materials in laboratory suites shall be in accordance with Table 3804.1.1. 3804.1.1.4 Maximum number. The maximum number of laboratory suites shall be in accordance 3804.1.1.1 Separation from other nonlaboratory with Table 3804.1.1. Where a building contains both areas. Laboratory suites shall be separated from other laboratory suites and control areas, the total number portions of the building in accordance with the most of laboratory suites and control areas within a build- restrictive of the following: ing shall not exceed the maximum number of laboratory suites in accordance with Table 3804.1.1. 1. Fire barriers and horizontal assemblies as required in Table 3804.1.1. Fire barriers shall 3804.1.1.5 Means of egress. Means of egress shall be in accordance with Chapter 10. TABLE 3804.1.1 DESIGN AND NUMBER OF LABORATORY SUITES PER FLOOR FLOOR LEVEL PERCENTAGE OF THE MAXIMUM ALLOWABLE NUMBER OF LAB FIRE-RESISTANCE RATING FOR QUANTITY PER LAB SUITEa SUITES PER FLOOR FIRE BARRIERS IN HOURSb 21+ Not Allowed Not Allowed Not Allowed 2c 16–20 25 1 2c 2c 11–15 50 1 1 1 Above grade plane 7–10 50 2 1 4–6 75 4 1 1 3 100 4 Not Allowed 1–2 100 6 Below grade plane 1 75 4 2 50 2 Lower than 2 Not Allowed Not Allowed a. Percentages shall be of the maximum allowable quantity per control area shown in Table 5003.1.1(1) and Table 5003.1.1(2), with all increases allowed in the footnotes to those tables. b. Fire barriers shall include walls, floors and ceilings necessary to provide separation from other portions of the building. c. Vertical fire barriers separating laboratory suites from other spaces on the same floor are permitted to be 1-hour rated. 38-2 2021 INTERNATIONAL FIRE CODE® EDUFIRE.IR Telegram: EDUFIRE.IR

HIGHER EDUCATION LABORATORIES 3804.1.1.6 Standby or emergency power. Higher 2. Storage shall be within approved hazardous mate- education laboratory suites shall be provided with rial storage cabinets in accordance with Section emergency or standby power in accordance with 5003.8.7, or shall be located in an inert atmo- Section 1203.2.14. sphere glove box in accordance with NFPA 45, Section 7.11. 3804.1.1.7 Ventilation. Ventilation shall be in accor- dance with the International Mechanical Code and 3. The storage cabinet or glove box shall not contain Chapter 7 of NFPA 45. any storage of incompatible materials. 3804.1.1.8 Liquid-tight floor. Portions of laboratory 3805.2.2 Restricted materials use. Where approved by suites where hazardous materials are present shall be the fire code official, use of the following hazardous provided with a liquid-tight floor. materials prohibited by Table 5003.1.1(1) in buildings not equipped throughout with an automatic sprinkler system 3804.1.1.9 Automatic fire-extinguishing systems. in accordance with Section 903.3.1.1, shall be allowed Buildings containing laboratory suites shall be within a laboratory control area at 25 percent of Table equipped throughout with an approved automatic 5003.1.1(1) limits for buildings equipped throughout with sprinkler system in accordance with Section 903.3.1.1. an automatic sprinkler system. 3804.1.2 Percentage of maximum allowable quantity 1. Class 4 oxidizers. in each laboratory suite. The percentage of maximum allowable quantities of hazardous materials in each labo- 2. Pyrophorics. ratory suite shall be in accordance with Table 3804.1.1. The percentage of the maximum allowable quantity SECTION 3805 per control area shown in Table 3805.4 shall be applied NONSPRINKLERED LABORATORIES to 25 percent of Table 5003.1.1(1) limits for Class 4 oxidizers or pyrophoric materials. 3805.1 Scope. Storage and use of hazardous materials in existing laboratories located within existing buildings not Additional quantity increases shall be prohibited, and equipped throughout with an automatic sprinkler system in such materials shall be stored in accordance with all of accordance with Section 903.3.1.1 is permitted where such the following: use complies with Section 3803, Chapters 50 through 67, as applicable, and Sections 3805.2 through 3805.4. 1. Use shall be within an approved chemical fume hood listed in accordance with UL 1805, or in an 3805.2 Nonsprinklered laboratories. The maximum allow- inert atmosphere glove box in accordance with able quantities of hazardous materials in storage and use in NFPA 45, Section 7.11, or other approved equip- control areas in laboratories located in buildings not ment designed for the specific hazard of the equipped throughout with an automatic sprinkler system in material. accordance with Section 903.3.1.1 shall be in accordance with Table 5003.1.1(1), Table 5003.1.1(2) and Table 2. Combustible materials shall be kept not less than 2 5003.8.3.2, except as modified by Sections 3805.2.1 and feet (610 mm) away from the work area, except 3805.2.2. for those items directly related to the research. 3805.2.1 Restricted materials storage. Where approved 3. A portable fire extinguisher appropriate for the by the fire code official, storage of the following hazard- specific material shall be provided within 20 feet ous materials prohibited by Table 5003.1.1(1) in (6096 mm) of the use in accordance with Section buildings not equipped throughout with an automatic 906. sprinkler system in accordance with Section 903.3.1.1 shall be allowed within a laboratory control area at 25 3805.3 Restricted materials automatic fire detection. An percent of Table 5003.1.1(1) limits for a building automatic fire detection system shall be installed in all exist- equipped throughout with an automatic sprinkler system. ing laboratories in nonsprinklered buildings in accordance with this section. Detectors shall be connected to the build- 1. Class 4 oxidizers. ing’s fire alarm control unit where a fire alarm system is provided. Detector initiation shall activate the occupant noti- 2. Pyrophorics. fication system in accordance with Section 907.5 where connected to the building’s fire alarm control unit. Activa- The percentage of the maximum allowable quantity tion of the detection system shall sound a local alarm in per control area shown in Table 3805.4 shall be applied buildings not equipped with a fire alarm notification system. to 25 percent of Table 5003.1.1(1) limits for Class 4 oxidizers or pyrophoric materials. 3805.3.1 System supervision and monitoring. Auto- matic fire detection systems shall be electronically Additional quantity increases shall be prohibited, and supervised and monitored by an approved supervising such materials shall be stored in accordance with all of station or, where approved, shall initiate an audible and the following: visual signal at a constantly attended, on-site location. 1. Containers shall be completely sealed and stored 3805.4 Percentage of maximum allowable quantity per in accordance with the manufacturers’ control area. The percentage of maximum allowable quanti- recommendations. ties per control area of hazardous materials shall comply with Table 3805.4. 2021 INTERNATIONAL FIRE CODE® 38-3 EDUFIRE.IR Telegram: EDUFIRE.IR

HIGHER EDUCATION LABORATORIES SECTION 3806 the requirements for laboratory suites are permitted to comply with Section 3804. EXISTING SPRINKLERED LABORATORIES 3806.2.1 Percentage of maximum allowable quantities 3806.1 Scope. Storage and use of hazardous materials in per control area. The percentage of maximum allowable existing laboratories within buildings equipped throughout quantities per control area of hazardous materials shall with an automatic sprinkler system in accordance with be in accordance with Table 3806.2.1. Section 903.3.1.1 shall be in accordance with Section 3803 and with Chapters 50 through 67, as applicable, except as modified by this section. 3806.2 Hazardous materials storage and use. Storage and use of hazardous materials within control areas in new and existing laboratories equipped with an automatic sprinkler system shall be in accordance with this section and Chapters 50 through 67, as applicable. Exception: Existing laboratories in buildings equipped throughout with an automatic sprinkler system meeting TABLE 3805.4 DESIGN AND NUMBER OF CONTROL AREAS IN EXISTING NONSPRINKLERED LABORATORIES FLOOR LEVEL PERCENTAGE OF THE NUMBER OF CONTROL FIRE-RESISTANCE RATING MAXIMUM ALLOWABLE AREAS PER FLOOR FOR FIRE BARRIERS IN Above grade plane Higher than 9 QUANTITY PER CONTROL HOURSb, c, d 7–9 1 4–6 AREAa, e 2 2c 3 22 2c 1–2 5 4 2c 1 10 1 25 75 100 1 100 3 1 Below grade plane 2 75 2 1 Lower than 2 Not Allowed Not Allowed Not Allowed a. Percentages shall be of the maximum allowable quantity per control area shown in Table 5003.1.1(1) and Table 5003.1.1(2), excluding all increases allowed in the footnotes to those tables. b. Fire barriers shall include walls, floors and ceilings necessary to provide separation from other portions of the building. c. Vertical fire barriers separating control areas from other spaces on the same floor are permitted to be 1-hour fire-resistance rated. d. See Section 414.2.4 of the International Building Code for additional requirements. e. The percentage of the maximum allowable quantity per control area shown in Table 3805.4 shall be applied to 25 percent of Table 5003.1.1(1) limits for Class 4 oxidizers or pyrophoric materials. TABLE 3806.2.1 DESIGN AND NUMBER OF CONTROL AREAS IN EXISTING SPRINKLERED LABORATORIES FLOOR LEVEL PERCENTAGE OF THE NUMBER OF CONTROL FIRE-RESISTANCE RATING MAXIMUM ALLOWABLE AREAS PER FLOOR FOR FIRE BARRIERS IN 21+ QUANTITY PER CONTROL HOURSb, d 1 AREAa 2c 5 11–20 10 1 2c Above grade plane 7–10 25 2 2c 4–6 50 2 2c 3 75 3 1 1–2 100 4 1 1 100 3 1 Below grade plane 2 75 2 1 Lower than 2 Not Allowed Not Allowed Not Allowed a. Percentages shall be of the maximum allowable quantity per control area shown in Table 5003.1.1(1) and Table 5003.1.1(2), with all increases allowed in the footnotes to those tables. b. Fire barriers shall include walls, floors and ceilings necessary to provide separation from other portions of the building. c. Vertical fire barriers separating control areas from other spaces on the same floor are permitted to be 1-hour fire-resistance rated. d. See Section 414.2.4 of the International Building Code for additional requirements. 38-4 2021 INTERNATIONAL FIRE CODE® EDUFIRE.IR Telegram: EDUFIRE.IR

CHAPTER 39 PROCESSING AND EXTRACTION FACILITIES User note: About this chapter: Chapter 39 focuses on the processing and extraction of oils and fats from various plants. This process includes extraction by use of a solvent, desolventizing the raw material, production of the miscella, distillation of the solvent from the miscella and solvent recovery. The processes used are not necessarily typical hazardous material processes, and often the systems and equipment associated with such processes may not be listed. This chapter provides the tools to appropriately address the hazards while also meeting the unique needs of industry. This chapter has provisions for a technical report prepared by a registered design professional and requires site inspections to make sure equipment and systems are installed as designed and approved. SECTION 3901 surizing of the miscella to other than normal pressure or GENERAL temperature shall be approved and performed in an appli- ance listed for such use. Domestic or commercial cooking 3901.1 Scope. Plant processing or extraction facilities shall appliances shall not be used. comply with this chapter and the International Building Code. The extraction process includes the act of extraction 3903.4.1 Industrial ovens. The use of industrial ovens of the oils and fats by use of a solvent, desolventizing of the shall comply with Chapter 30. raw material, production of the miscella, distillation of the solvent from the miscella and solvent recovery. The use, 3903.5 Use of flammable and combustible liquids. The use storage, transfilling and handling of hazardous materials in of flammable and combustible liquids for liquid extraction these facilities shall comply with this chapter, other applica- processes where the liquid is boiled, distilled or evaporated ble provisions of this code and the International Building shall be located within a hazardous exhaust fume hood, rated Code. for exhausting flammable vapors. Electrical equipment used within the hazardous exhaust fume hood shall be rated for 3901.2 Existing buildings or facilities. Existing buildings use in flammable atmospheres. Heating of flammable or or facilities used for the processing of plants shall comply combustible liquids over an open flame is prohibited. with this chapter. Existing extraction processes where the medium of extraction or solvent is changed shall comply Exception: The use of a heating element not rated for with this chapter. flammable atmospheres, where documentation from the manufacture, or approved testing laboratory indicates the 3901.3 Permits. Permits shall be required as set forth in element is rated for heating of flammable liquids. Sections 105.5 and 105.6. 3903.6 Liquefied petroleum gas. Liquefied petroleum SECTION 3902 gases shall not be released to the atmosphere except where DEFINITIONS released in accordance with Section 7.3 of NFPA 58. 3902.1 Definitions. The following terms are defined in SECTION 3904 Chapter 2: SYSTEMS AND EQUIPMENT DESOLVENTIZING. 3904.1 General requirements. Systems and equipment used with the processing and extraction of oils and products MISCELLA. from plants shall comply with Sections 3904.2 through 3904.2.2.3 and Section 5003.2, and other applicable provi- SECTION 3903 sions of this code, the International Building Code and the PROCESSING AND EXTRACTION International Mechanical Code. 3903.1 Construction. Processing shall be located in a build- 3904.2 Systems and equipment. Systems or equipment ing complying with the International Building Code. used for the extraction of oils from plant material shall comply with Section 3904.2.1 or 3904.2.2. 3903.2 Prohibited occupancies. Extraction processes utiliz- ing flammable gases or flammable cryogenic fluids shall not 3904.2.1 Listings. Systems or equipment used for the be located in any building containing a Group A, E, I or R extraction of oils from plant material shall be listed and occupancy. labeled in accordance with UL 1389 and installed in accordance with the listing and the manufacturer’s instal- 3903.3 Location. The extraction equipment and extraction lation instructions. processes utilizing hydrocarbon solvents shall be located in a room or area dedicated to extraction. 3904.2.2 Approvals. Systems or equipment used for the extraction of oils from plant material shall be approved 3903.4 Post-process purification and winterization. Post- for the specific use. The system shall be reviewed by a processing and winterization involving the heating or pres- 2021 INTERNATIONAL FIRE CODE® 39-1 EDUFIRE.IR Telegram: EDUFIRE.IR

PROCESSING AND EXTRACTION FACILITIES registered design professional. The registered design 9. Analysis of the vessel(s) if pressurized beyond ¬ professional shall review and consider any information standard atmospheric pressure. Analysis shall provided by the system’s designer or manufacturer. A include purchased and fabricated components. technical report in accordance with Section 3904.2.2.1 shall be prepared and submitted to the fire code official 10. Structural analysis for the frame system for review and approval. The firm or individual preparing supporting the equipment. the technical report shall be approved by the fire code official prior to performing the analysis. 11. Process safety analysis of the extraction system, from the introduction of raw product to 3904.2.2.1 Technical report. A technical report, the end of the extraction process. reviewed and approved by the fire code official as required by Section 3904.2, is required prior to the 12. Comprehensive process hazard analysis equipment being located or installed at the facility. considering failure modes and points of failure The report shall be prepared by a registered design throughout the process. The process hazard professional or other professional approved by the fire analysis shall include a review of emergency code official. procedure information provided by the manu- facturer of the equipment or process and not 3904.2.2.2 Report content. The technical report shall that of the facility, building or room. contain all of the following: 13. Review of the assembly instructions, opera- 1. Manufacturer information. tional and maintenance manuals provided by the manufacturer. 2. Preparer of record of the technical report. 14. List of references used in the analysis. 3. Date of review and report revision history. 3904.2.2.3 Site inspection. Prior to operation of the 4. Signature page, including all of the following: extraction equipment, where required by the fire code official, the engineer of record or approved profes- 4.1. Author of the report. sional, as approved in Section 3904.2, shall inspect the site of the extraction process once equipment has been 4.2. Date of report. installed for compliance with the technical report and the building analysis. The engineer of record or 4.3. Date and signature of registered design approved professional shall provide a report of find- professional of record performing the ings and observations of the site inspection to the fire design or peer review. code official prior to the approval of the extraction process. The field inspection report authored by the 5. Model number of the item evaluated. If the engineer of record shall include the serial number of equipment is provided with a serial number, the equipment used in the process and shall confirm the serial number shall be included for verifica- that the equipment installed is the same model and tion at the time of site inspection. type of equipment identified in the technical report. 6. Methodology of the design or peer review SECTION 3905 process used to determine minimum safety SAFETY SYSTEMS requirements. Methodology shall consider the basis of design, and shall include a code analy- 3905.1 Gas detection. For extraction processes utilizing sis and code path to demonstrate whether flammable gases as solvents, a gas detection system comply- specific codes or standards are applicable. ing with Section 916 shall be provided. 7. Equipment description. A list of every compo- 3905.1.1 Operation. Activation of the gas detection nent and subassembly, such as fittings, hose, system shall result in all the following: quick disconnects, gauges, site glass, gaskets, valves, pumps, vessels, containers and 1. Initiation of distinct audible and visual alarm switches, of the system or equipment, indicat- signals in the extraction room. ing the manufacturer, model number, material and solvent compatibility. Manufacturer’s data 2. Deactivation of all heating systems located in the sheets shall be provided. extraction room. 8. A general flow schematic or general process 3. Activation of the mechanical ventilation system, flow diagram of the process. Post-processing where the system is interlocked with gas or winterization shall be included in this detection. diagram. Primary components of the process equipment shall be identified and match the 4. De-energize all light switches and electrical equipment list required in Item 7. Operating outlets. temperatures, pressures and solvent state of matter shall be identified in each primary step 3905.1.2 Failure of the gas detection system. Failure of or component. A piping and instrumentation the gas detection system shall result in the deactivation of diagram (PID or P&ID) shall be provided. the heating system; activation of the mechanical ventila- tion system where the system is interlocked with the gas 39-2 2021 INTERNATIONAL FIRE CODE® EDUFIRE.IR Telegram: EDUFIRE.IR

PROCESSING AND EXTRACTION FACILITIES detection system; and initiation of a trouble signal to ¬ sound in an approved location. 3905.2 Emergency shutoff. Extraction processes utilizing gaseous hydrocarbon-based solvents shall be provided with emergency shutoff systems in accordance with Section 5803.1.3. 2021 INTERNATIONAL FIRE CODE® 39-3 EDUFIRE.IR Telegram: EDUFIRE.IR

39-4 2021 INTERNATIONAL FIRE CODE® EDUFIRE.IR Telegram: EDUFIRE.IR

CHAPTER 40 STORAGE OF DISTILLED SPIRITS AND WINES User note: About this chapter: Chapter 40 provides specific requirements for the storage of distilled spirits and wines. In accordance with Section 307.1.1 of the International Building Code®, these occupancies are not classified as a Group H occupancy. Instead, as listed in Sections 311.2 and 311.3 of the International Building Code, the storage of beverages that contain up to and including 16-percent alcohol are classi- fied as a Group S-2 occupancy, and those that contain over 16-percent alcohol content are classified as a Group S-1 occupancy. Note that those that are classified as a Group S-1 occupancy are required to be provided with an automatic sprinkler system throughout the Group S-1 fire area, regardless of size, in accordance with Section 903. SECTION 4001 2. The rooms and spaces shall be provided exhaust GENERAL ventilation at a rate of not less than 1 cfm per square foot [0.00508 m3/(s × m2)] of solid floor area. The 4001.1 General. The storage of distilled spirits and wines in exhaust ventilation shall be accomplished by natural barrels and casks shall comply with this chapter in addition or mechanical means, with discharge of the exhaust to other applicable requirements of this code. to a safe location outside the building. 4001.1.1 Nonapplicability. Chapter 50 and Chapter 57 4003.3 Sources of ignition. Sources of ignition shall be are not applicable to the storage of distilled spirits and controlled in accordance with Sections 4003.3.1 through wines in barrels and casks as identified in Section 5001.1, 4003.4. Exception 10, and Section 5701.2, Item 10. 4003.3.1 Smoking. Smoking shall be prohibited and “No SECTION 4002 Smoking” signs provided as follows: DEFINITIONS 1. In rooms or areas where hazardous materials are 4002.1 Definitions. Words and terms used in this chapter stored or dispensed or used in open systems in and defined in Chapter 2 shall have the meanings ascribed to amounts requiring a permit in accordance with them as defined therein. Sections 105.5 and 105.6. SECTION 4003 2. Within 25 feet (7620 mm) of outdoor storage, PRECAUTIONS AGAINST FIRE dispensing or open-use areas. 4003.1 Spill control. Drainage or containment systems shall 3. Facilities or areas within facilities that have been be provided by means of curbs, scuppers, special drains or designated as totally “no smoking” shall have “No other suitable means to prevent the flow of spills throughout Smoking” signs placed at all entrances to the facil- the building. ity or area. Designated areas within such facilities where smoking is permitted either permanently or 4003.2 Ventilation. For rooms and spaces where distilled temporarily shall be identified with signs desig- spirits and wines in barrels and casks are stored, ventilation nating that smoking is permitted in these areas shall be provided in accordance with the International only. Mechanical Code and one of the following: 4. In rooms or areas where flammable or combusti- 1. The rooms and spaces shall be ventilated at a rate ble hazardous materials are stored, dispensed or sufficient to maintain the concentration of vapors used. within the area at or below 25 percent of the lower flammable limit (LFL). This shall be confirmed by Signs required by this section shall be in English as a sampling the actual vapor concentration under primary language or in symbols allowed by this code and normal operating conditions. The sampling shall be shall comply with Section 310. conducted throughout the enclosed storage area, extending to or toward the bottom and the top of the 4003.3.2 Open flame. Open flames and high-temperature enclosed storage area. The vapor concentration used devices shall not be used in a manner that creates a to determine the required ventilation rate shall be the hazardous condition and shall be listed for use with the highest measured concentration during the sampling hazardous materials stored or used. procedure. The sampling shall be conducted manu- ally or by installation of a continuously monitoring 4003.3.3 Industrial trucks. Powered industrial trucks flammable vapor detection system. used in areas designated as hazardous (classified) loca- tions in accordance with NFPA 70 shall be listed and labeled for use in the environment intended in accordance with NFPA 505. 2021 INTERNATIONAL FIRE CODE® 40-1 EDUFIRE.IR Telegram: EDUFIRE.IR

STORAGE OF DISTILLED SPIRITS AND WINES 2021 INTERNATIONAL FIRE CODE® 4003.3.4 Electrical. Electrical wiring and equipment Telegram: EDUFIRE.IR shall be installed and maintained in accordance with Section 608 and NFPA 70. 4003.4 Lightning. Structures containing barrel storage should be protected from lightning. The lightning protection equipment shall be installed in accordance with NFPA 70 and NFPA 780. SECTION 4004 STORAGE 4004.1 Storage. Storage shall be in accordance with this section and Section 315. 4004.2 Empty containers. The storage of empty containers previously used for the storage of flammable or combustible liquids, unless free from explosive vapors, shall be stored as required for filled containers. 4004.3 Basement storage. Class I liquids shall be allowed to be stored in basements in amounts not exceeding the maxi- mum allowable quantity per control area for use-open systems in Table 5003.1.1(1), provided that automatic suppression and other fire protection are provided in accor- dance with Chapter 9. Class II and IIIA liquids shall also be allowed to be stored in basements, provided that automatic suppression and other fire protection are provided in accor- dance with Chapter 9. 4004.4 Bulk beverage storage areas. There shall be no stor- age of combustible materials in the bulk beverage storage areas not related to the beverage storage activities. SECTION 4005 FIRE PROTECTION 4005.1 Automatic sprinkler system. The storage of distilled spirits and wines shall be protected by an approved automatic sprinkler system as required by Chapter 9. 4005.2 Portable fire extinguishers. Approved portable fire extinguishers shall be provided in accordance with Section 906. SECTION 4006 SIGNAGE 4006.1 Hazard identification signs. Unless otherwise exempted by the fire code official, visible hazard identifica- tion signs, as specified in NFPA 704 for the specific material contained, shall be placed on stationary containers and above-ground tanks; at entrances to locations where hazard- ous materials are stored, dispensed, used or handled in quantities requiring a permit; and at specific entrances and locations designated by the fire code official. 4006.1.1 Maintenance and style. Signs and markings required by Section 4006.1 shall not be obscured or removed; shall be in English as a primary language or in symbols allowed by this code; shall be durable; and the size, color and lettering shall be approved. 40-2 EDUFIRE.IR

CHAPTERS 41 through 49 RESERVED 2021 INTERNATIONAL FIRE CODE® 41–49-1 EDUFIRE.IR Telegram: EDUFIRE.IR

41–49-2 2021 INTERNATIONAL FIRE CODE® EDUFIRE.IR Telegram: EDUFIRE.IR

Part V—Hazardous Materials CHAPTER 50 HAZARDOUS MATERIALS—GENERAL PROVISIONS User note: About this chapter: Chapter 50 contains the general requirements for all hazardous materials in all occupancies. Hazardous materials are defined as those that pose an unreasonable risk to the health and safety of operating or emergency personnel, the public and the environ- ment if not properly controlled during handling, storage, manufacture, processing, packaging, use, disposal or transportation. The general provisions of this chapter are intended to be companion provisions with the specific requirements of Chapters 51 through 67 regarding a given hazardous material. Also, Sections 414 and 415 of the International Building Code® contain construction requirements related to the storage and use of such materials. SECTION 5001 8. The display, storage, sale or use of fireworks and GENERAL explosives in accordance with Chapter 56. 5001.1 Scope. Prevention, control and mitigation of danger- 9. Corrosives utilized in personal and household ous conditions related to storage, dispensing, use and products in the manufacturer’s original consumer handling of hazardous materials shall be in accordance with packaging in Group M occupancies. this chapter. 10. The storage of beer, distilled spirits and wines in This chapter shall apply to all hazardous materials, barrels and casks. including those materials regulated elsewhere in this code, except that where specific requirements are provided in other 11. The use of wall-mounted dispensers containing chapters, those specific requirements shall apply in accor- alcohol-based hand rubs classified as Class I or II dance with the applicable chapter. Where a material has liquids where in accordance with Section 5705.5. multiple hazards, all hazards shall be addressed. 12. Specific provisions for flammable liquids in motor Exceptions: fuel-dispensing facilities, repair garages, airports and marinas in Chapter 23. 1. In retail or wholesale sales occupancies, medi- cines, foodstuff, cosmetics and commercial or 13. Storage and use of fuel oil in tanks and containers institutional products containing not more than 50 connected to oil-burning equipment. Such storage percent by volume of water-miscible liquids and and use shall be in accordance with Section 605. with the remainder of the solutions not being For abandonment of fuel oil tanks, Chapter 57 flammable, provided that such materials are pack- applies. aged in individual containers not exceeding 1.3 gallons (5 L). 14. Storage and display of aerosol products comply- ing with Chapter 51. 2. Alcoholic beverages in retail or wholesale sales occupancies, provided that the liquids are pack- 15. Storage and use of flammable or combustible aged in individual containers not exceeding 1.3 liquids that do not have a fire point when tested in gallons (5 L). accordance with ASTM D92, not otherwise regu- lated by this code. 3. Application and release of pesticide and agricul- tural products and materials intended for use in 16. Flammable or combustible liquids with a flash weed abatement, erosion control, soil amendment point greater than 95°F (35°C) in a water-miscible or similar applications where applied in accor- solution or dispersion with a water and inert dance with the manufacturer’s instructions and (noncombustible) solids content of more than 80 label directions. percent by weight, which do not sustain combus- tion, not otherwise regulated by this code. 4. The off-site transportation of hazardous materials where in accordance with Department of Trans- 17. Commercial cooking oil storage tank systems portation (DOTn) regulations. located within a building and designed and installed in accordance with Section 607 and 5. Building materials not otherwise regulated by this NFPA 30. code. 5001.1.1 Waiver. The provisions of this chapter are 6. Refrigeration systems (see Section 608). waived where the fire code official determines that such enforcement is preempted by other codes, statutes or ordi- 7. Stationary storage battery systems regulated by nances. The details of any action granting such a waiver Section 1207. 50-1 2021 INTERNATIONAL FIRE CODE® Telegram: EDUFIRE.IR EDUFIRE.IR

HAZARDOUS MATERIALS—GENERAL PROVISIONS 2. Provide safeguards to minimize the consequences of an unsafe condition involving hazardous materi- shall be recorded and entered in the files of the code als during normal operations and in the event of an enforcement agency. abnormal condition. 5001.2 Material classification. Hazardous materials are 5001.3.3 Performance requirements. Where safe- those chemicals or substances defined as such in this code. guards, systems, documentation, written plans or Definitions of hazardous materials shall apply to all hazard- procedures, audits, process hazards analysis, mitigation ous materials, including those materials regulated elsewhere measures, engineering controls or construction features in this code. are required by Sections 5001.3.3.1 through 5001.3.3.18, the details of the design alternative shall be subject to 5001.2.1 Mixtures. Mixtures shall be classified in accor- approval by the fire code official. The details of actions dance with hazards of the mixture as a whole. Mixtures of granting the use of the design alternatives shall be hazardous materials shall be classified in accordance with recorded and entered in the files of the jurisdiction. nationally recognized reference standards; by an approved qualified organization, individual, or Safety 5001.3.3.1 Properties of hazardous materials. The Data Sheet (SDS); or by other approved methods. physical- and health-hazard properties of hazardous materials on-site shall be known and shall be made 5001.2.2 Hazard categories. Hazardous materials shall readily available to employees, neighbors and the fire be classified according to hazard categories. The catego- code official. ries include materials regulated by this chapter and materials regulated elsewhere in this code. 5001.3.3.2 Reliability of equipment and operations. Equipment and operations involving hazardous materi- 5001.2.2.1 Physical hazards. The material categories als shall be designed, installed and maintained to listed in this section are classified as physical hazards. ensure that they reliably operate as intended. A material with a primary classification as a physical hazard can also pose a health hazard. 5001.3.3.3 Prevention of unintentional reaction or release. Safeguards shall be provided to minimize the 1. Explosives and blasting agents. risk of an unintentional reaction or release that could 2. Combustible liquids. endanger people or property. 3. Flammable solids, liquids and gases. 4. Organic peroxide solids or liquids. 5001.3.3.4 Spill mitigation. Spill containment 5. Oxidizer, solids or liquids. systems or means to render a spill harmless to people 6. Oxidizing gases. or property shall be provided where a spill is deter- 7. Pyrophoric solids, liquids or gases. mined to be a plausible event and where such an event 8. Unstable (reactive) solids, liquids or gases. would endanger people or property. 9. Water-reactive materials solids or liquids. 10. Cryogenic fluids. 5001.3.3.5 Ignition hazards. Safeguards shall be provided to minimize the risk of exposing combustible 5001.2.2.2 Health hazards. The material categories hazardous materials to unintended sources of ignition. listed in this section are classified as health hazards. A material with a primary classification as a health 5001.3.3.6 Protection of hazardous materials. Safe- hazard can also pose a physical hazard. guards shall be provided to minimize the risk of exposing hazardous materials to a fire or physical 1. Highly toxic and toxic materials. damage whereby such exposure could endanger or 2. Corrosive materials. lead to the endangerment of people or property. 5001.3 Performance-based design alternative. Where 5001.3.3.7 Exposure hazards. Safeguards shall be approved by the fire code official, buildings and facilities provided to minimize the risk of and limit damage where hazardous materials are stored, used or handled shall from a fire or explosion involving explosive hazardous be permitted to comply with this section as an alternative to materials whereby such fire or explosion could endan- compliance with the other requirements set forth in this ger or lead to the endangerment of people or property. chapter and Chapters 51 through 67. 5001.3.3.8 Detection of gas or vapor release. Where 5001.3.1 Objective. The objective of Section 5001.3 is to a release of hazardous materials gas or vapor would protect people and property from the consequences of cause immediate harm to persons or property, means unauthorized discharge, fires or explosions involving of mitigating the dangerous effects of a release shall be hazardous materials. provided. 5001.3.2 Functional statements. Performance-based 5001.3.3.9 Reliable power source. Where a power design alternatives are based on the following functional supply is relied on to prevent or control an emergency statements: condition that could endanger people or property, the power supply shall be from a reliable source. 1. Provide safeguards to minimize the risk of unwanted releases, fires or explosions involving 5001.3.3.10 Ventilation. Where ventilation is neces- hazardous materials. sary to limit the risk of creating an emergency condition resulting from normal or abnormal opera- 50-2 tions, means of ventilation shall be provided. EDUFIRE.IR 2021 INTERNATIONAL FIRE CODE® Telegram: EDUFIRE.IR

HAZARDOUS MATERIALS—GENERAL PROVISIONS 5001.3.3.11 Process hazard analyses. Process hazard 5001.5.1 Hazardous Materials Management Plan. analyses shall be conducted to ensure reasonably the Where required by the fire code official, an application protection of people and property from dangerous for a permit shall include a Hazardous Materials Manage- conditions involving hazardous materials. ment Plan (HMMP). The HMMP shall include a facility site plan designating the following: 5001.3.3.12 Prestartup safety review. Written docu- mentation of prestartup safety review procedures shall 1. Access to each storage and use area. be developed and enforced to ensure that operations are initiated in a safe manner. The process of develop- 2. Location of emergency equipment. ing and updating such procedures shall involve the participation of affected employees. 3. Location where liaison will meet emergency responders. 5001.3.3.13 Operating and emergency procedures. Written documentation of operating procedures and 4. Facility evacuation meeting point locations. procedures for emergency shutdown shall be devel- oped and enforced to ensure that operations are 5. The general purpose of other areas within the conducted in a safe manner. The process of developing building. and updating such procedures shall involve the partici- pation of affected employees. 6. Location of all above-ground and underground tanks and their appurtenances including, but not 5001.3.3.14 Management of change. A written plan limited to, sumps, vaults, below-grade treatment for management of change shall be developed and systems and piping. enforced. The process of developing and updating the plan shall involve the participation of affected 7. The hazard classes in each area. employees. 8. Locations of all control areas and Group H 5001.3.3.15 Emergency plan. A written emergency occupancies. plan shall be developed to ensure that proper actions are taken in the event of an emergency, and the plan 9. Emergency exits. shall be followed if an emergency condition occurs. The process of developing and updating the plan shall 5001.5.2 Hazardous Materials Inventory Statement involve the participation of affected employees. (HMIS). Where required by the fire code official, an application for a permit shall include an HMIS, such as 5001.3.3.16 Accident procedures. Written procedures Superfund Amendments and Reauthorization Act of 1986 for investigation and documentation of accidents shall (SARA) Title III, Tier II Report or other approved state- be developed, and accidents shall be investigated and ment. The HMIS shall include the following information: documented in accordance with these procedures. 1. Product name. 5001.3.3.17 Consequence analysis. Where an acci- dental release of hazardous materials could endanger 2. Component. people or property, either on- or off-site, an analysis of the expected consequences of a plausible release shall 3. Chemical Abstract Service (CAS) number. be performed and utilized in the analysis and selection of active and passive hazard mitigation controls. 4. Location where stored or used. 5001.3.3.18 Safety audits. Safety audits shall be 5. Container size. conducted on a periodic basis to verify compliance with the requirements of this section. 6. Hazard classification. 5001.4 Retail and wholesale storage and display. For retail 7. Amount in storage. and wholesale storage and display of nonflammable solid and nonflammable or noncombustible liquid hazardous 8. Amount in use-closed systems. materials in Group M occupancies and storage in Group S occupancies, see Section 5003.11. 9. Amount in use-open systems. 5001.5 Permits. Permits shall be required as set forth in 5001.6 Facility closure. Facilities shall be placed out of Sections 105.5 and 105.6. service in accordance with Sections 5001.6.1 through 5001.6.3. Where required by the fire code official, permittees shall apply for approval to permanently close a storage, use or 5001.6.1 Temporarily out-of-service facilities. Facili- handling facility. Such application shall be submitted not ties that are temporarily out of service shall continue to less than 30 days prior to the termination of the storage, use maintain a permit and be monitored and inspected. or handling of hazardous materials. The fire code official is authorized to require that the application be accompanied by 5001.6.2 Permanently out-of-service facilities. Facili- an approved facility closure plan in accordance with Section ties for which a permit is not kept current or is not 5001.6.3. monitored and inspected on a regular basis shall be deemed to be permanently out of service and shall be closed in an approved manner. Where required by the fire code official, permittees shall apply for approval to close permanently storage, use or handling facilities. The fire code official is authorized to require that such application be accompanied by an approved facility closure plan in accordance with Section 5001.6.3. 2021 INTERNATIONAL FIRE CODE® 50-3 EDUFIRE.IR Telegram: EDUFIRE.IR

HAZARDOUS MATERIALS—GENERAL PROVISIONS 5001.6.3 Facility closure plan. Where a facility closure NORMAL TEMPERATURE AND PRESSURE (NTP). plan is required in accordance with Section 5001.5 to terminate storage, dispensing, handling or use of hazard- OUTDOOR CONTROL AREA. ous materials, it shall be submitted to the fire code official not less than 30 days prior to facility closure. The plan PERMISSIBLE EXPOSURE LIMIT (PEL). shall demonstrate that hazardous materials that are stored, dispensed, handled or used in the facility will be trans- PESTICIDE. ported, disposed of or reused in a manner that eliminates the need for further maintenance and any threat to public PHYSICAL HAZARD. health and safety. PRESSURE VESSEL. SECTION 5002 DEFINITIONS SAFETY CAN. 5002.1 Definitions. The following terms are defined in Chapter 2: SAFETY DATA SHEET (SDS). BOILING POINT. CEILING LIMIT. SECONDARY CONTAINMENT. CHEMICAL. CHEMICAL NAME. SEGREGATED. CLOSED CONTAINER. CONTAINER. SOLID. CONTROL AREA. CYLINDER. STORAGE, HAZARDOUS MATERIALS. DAY BOX. DEFLAGRATION. SYSTEM. DESIGN PRESSURE. DETACHED BUILDING. TANK, ATMOSPHERIC. DISPENSING. EXCESS FLOW CONTROL. TANK, PORTABLE. EXHAUSTED ENCLOSURE. EXPLOSION. TANK, STATIONARY. FLAMMABLE VAPORS OR FUMES. GAS CABINET. TANK VEHICLE. GAS ROOM. HANDLING. UNAUTHORIZED DISCHARGE. HAZARDOUS MATERIALS. HEALTH HAZARD. USE (MATERIAL). IMMEDIATELY DANGEROUS TO LIFE AND HEALTH (IDLH). VAPOR PRESSURE. INCOMPATIBLE MATERIALS. LIQUID. SECTION 5003 LOWER EXPLOSIVE LIMIT (LEL). GENERAL REQUIREMENTS LOWER FLAMMABLE LIMIT (LFL). MAXIMUM ALLOWABLE QUANTITY PER 5003.1 Scope. The storage, use and handling of all hazard- CONTROL AREA. ous materials shall be in accordance with this section. 5003.1.1 Maximum allowable quantity per control area. The maximum allowable quantity per control area shall be as specified in Tables 5003.1.1(1) through 5003.1.1(4). For retail and wholesale storage and display in Group M occupancies and Group S storage, see Section 5003.11. 5003.1.2 Conversion. Where quantities are indicated in pounds and where the weight per gallon of the liquid is not provided to the fire code official, a conversion factor of 10 pounds per gallon (1.2 kg/L) shall be used. 5003.1.3 Quantities not exceeding the maximum allowable quantity per control area. The storage, use and handling of hazardous materials in quantities not exceeding the maximum allowable quantity per control area indicated in Tables 5003.1.1(1) through 5003.1.1(4) shall be in accordance with Sections 5001 and 5003. 5003.1.4 Quantities exceeding the maximum allowable quantity per control area. The storage and use of hazardous materials in quantities exceeding the maximum allowable quantity per control area indicated in Tables 5003.1.1(1) through 5003.1.1(4) shall be in accordance with this chapter. 50-4 2021 INTERNATIONAL FIRE CODE® EDUFIRE.IR Telegram: EDUFIRE.IR

2021 INTERNATIONAL FIRE CODE® TABLE 5003.1.1(1) MAXIMUM ALLOWABLE QUANTITY PER CONTROL AREA OF HAZARDOUS MATERIALS POSING A PHYSICAL HAZARDa, j, m, n, p EDUFIRE.IR GROUP WHEN THE STORAGEb USE-CLOSED SYSTEMSb USE-OPEN SYSTEMSb MAXIMUM ALLOW- MATERIAL CLASS ABLE QUANTITY IS Solid pounds Liquid gallons Gas Solid pounds Liquid gallons Gas Solid pounds Liquid gallons (cubic feet) (pounds) (cubic feet at (cubic feet) (pounds) (cubic feet at Combustible EXCEEDED (cubic feet) (pounds) dust NTP) NTP) Combustible NA H-2 See Note q NA NA See Note q NA NA See Note q NA fibersq Loose H-3 (100) NA NA (100) NA NA (20) NA Combustible Baledo (1,000) NA (1,000) NA (200) liquidc, i H-2 or H-3 120d, e 120d 30d II H-2 or H-3 NA 330d, e NA 330d NA 80d Cryogenic IIIA 13,200e, f 13,200f 3,300f Flammable IIIB NA Cryogenic NA H-2 NA 45d NA NA 45d NA NA 10d Inert NA NA NA NA NL NA NA NL NA NA Cryogenic 50-5 Oxidizing NA H-3 NA 45d NA NA 45d NA NA 10d HAZARDOUS MATERIALS—GENERAL PROVISIONS Division 1.1 1e, g (1)e, g 0.25g (0.25)g 0.25g (0.25)g Telegram: EDUFIRE.IR Explosives Division 1.2 H-1 1e, g (1)e, g NA 0.25g (0.25)g NA 0.25g (0.25)g Division 1.3 H-1 5e, g (5)e, g Flammable gas Division 1.4 H-1 or H-2 50e, g (50)e, g 1,000d, e 1g (1)g 1,000d, e 1g (1)g Division 1.4G H-3 125e, l NA NA 50g (50)g NA NA NA Flammable Division 1.5 H-3 1e, g (1)e, g NA NA NA NA NA NA liquidc Division 1.6 H-1 1e, g NA NA 0.25g (0.25)g NA 0.25g (0.25)g H-1 NA NA NA NA NA NA NA NA Flammable Gaseous (150)d, e NA NA NA NA liquid, Liquefied H-2 NA 30d, e (150)d, e combination NA 30d NA 10d (IA, IB, IC) IA H-2 NA 120d, e 30d IB and IC or NA 120d NA Flammable H-3 125d, e 120d, e, h 30d, h solid NA H-2 125d 120d, h 25d or NA NA NA H-3 NA H-3 (continued)

50-6 TABLE 5003.1.1(1)—continued MAXIMUM ALLOWABLE QUANTITY PER CONTROL AREA OF HAZARDOUS MATERIALS POSING A PHYSICAL HAZARDa, j, m, n, p EDUFIRE.IR GROUP WHEN THE STORAGEb USE-CLOSED SYSTEMSb USE-OPEN SYSTEMSb HAZARDOUS MATERIALS—GENERAL PROVISIONS MAXIMUM ALLOW- MATERIAL CLASS ABLE QUANTITY IS Solid pounds Liquid gallons Gas Solid pounds Liquid gallons Gas Solid pounds Liquid gallons (cubic feet) (pounds) (cubic feet at (cubic feet) (pounds) (cubic feet at Inert gas EXCEEDED (cubic feet) (pounds) NTP) NTP) Organic peroxide Gaseous NA NA NA NL NA NA NL NA NA Oxidizer Liquefied NA NA NA NL NA NA NL NA NA Oxidizing gas Pyrophoric UD H-1 1e, g (1)e, g 0.25g (0.25)g 0.25g (0.25)g Unstable I H-2 5d, e (5)d, e 1d (1)d 1d (1)d (reactive) II H-3 50d, e (50)d, e NA 50d (50)d 10d (10)d Water reactive 125d (125)d NA III H-3 125d, e (125)d, e 25d (25)d IV NA NL NL NL NL NL NL V NA NL NL NL NL NL NL 4 H-1 1g (1)e, g 0.25g (0.25)g 0.25g (0.25)g 3k H-2 or H-3 10d, e (10)d, e 2d (2)d 2d (2)d NA 250d (250)d NA 2 H-3 250d, e (250)d, e 50d (50)d 1 NA 4,000e, f (4,000)e, f 4,000f (4,000)f 1,000f (1,000)f Gaseous H-3 NA NA 1,500d,e NA NA 1,500d,e NA NA Liquefied (150)d, e NA (150)d, e NA NA H-2 4e, g (4)e, g 50e, g 1g (1)g 10e, g 0 0 4 H-1 1e, g (1)e, g 10e, g 0.25g (0.25)g 2e, g 0.25g (0.25)g 3 H-1 or H-2 5d, e (5)d, e 50d, e 1d (1)d 10d, e 1d (1)d 2 H-3 50d, e (50)d, e 750d, e 50d (50)d 750d, e 10d (10)d 1 NA NL NL NL NL NL NL NL NL 3 H-2 5d, e (5)d, e 5d (5)d 1d (1)d 2 H-3 50d, e (50)d, e NA 50d (50)d NA 10d (10)d 1 NA NL NL NL NL NL NL 2021 INTERNATIONAL FIRE CODE® For SI: 1 cubic foot = 0.02832 m3, 1 pound = 0.454 kg, 1 gallon = 3.785 L. Telegram: EDUFIRE.IR NA = Not Applicable, NL = Not Limited, UD = Unclassified Detonable. a. For use of control areas, see Section 5003.8.3. b. The aggregate quantity in use and storage shall not exceed the quantity listed for storage. c. The quantities of alcoholic beverages in retail and wholesale sales occupancies shall not be limited providing the liquids are packaged in individual containers not exceeding 1.3 gallons. In retail and whole- sale sales occupancies, the quantities of medicines, foodstuff or consumer products and cosmetics containing not more than 50 percent by volume of water-miscible liquids with the remainder of the solutions not being flammable shall not be limited, provided that such materials are packaged in individual containers not exceeding 1.3 gallons. d. Maximum allowable quantities shall be increased 100 percent in buildings equipped throughout with an approved automatic sprinkler system in accordance with Section 903.3.1.1. Where Note e applies, the increase for both notes shall be applied accumulatively. e. Maximum allowable quantities shall be increased 100 percent where stored in approved storage cabinets, day boxes, gas cabinets, gas rooms, exhausted enclosures or in listed safety cans in accordance with Section 5003.9.10. Where Note d applies, the increase for both notes shall be applied accumulatively. f. Quantities shall not be limited in a building equipped throughout with an approved automatic sprinkler system in accordance with Section 903.3.1.1. g. Allowed only in buildings equipped throughout with an approved automatic sprinkler system. (footnotes continued)

2021 INTERNATIONAL FIRE CODE® TABLE 5003.1.1(1)—continued MAXIMUM ALLOWABLE QUANTITY PER CONTROL AREA OF HAZARDOUS MATERIALS POSING A PHYSICAL HAZARDa, j, m, n, p EDUFIRE.IR h. Containing not more than the maximum allowable quantity per control area of Class IA, Class IB or Class IC flammable liquids. i. The maximum allowable quantity shall not apply to fuel oil storage complying with Section 605.4.2. j. Quantities in parenthesis indicate quantity units in parenthesis at the head of each column. k. A maximum quantity of 220 pounds of solid or 22 gallons of liquid Class 3 oxidizers is allowed where such materials are necessary for maintenance purposes, operation or sanitation of equipment where the storage containers and the manner of storage are approved. l. Net weight of pyrotechnic composition of the fireworks. Where the net weight of the pyrotechnic composition of the fireworks is not known, 25 percent of the gross weight of the fireworks including packag- ing shall be used. m.For gallons of liquids, divide the amount in pounds by 10 in accordance with Section 5003.1.2. n. For storage and display quantities in Group M and storage quantities in Group S occupancies complying with Section 5003.11, see Table 5003.11.1. o. Densely-packed baled cotton that complies with the packing requirements of ISO 8115 shall not be included in this material class. p. The following shall not be included in determining the maximum allowable quantities: 1. Liquid or gaseous fuel in fuel tanks on vehicles. 2. Liquid or gaseous fuel in fuel tanks on motorized equipment operated in accordance with this code. 3. Gaseous fuels in piping systems and fixed appliances regulated by the International Fuel Gas Code. 4. Liquid fuels in piping systems and fixed appliances regulated by the International Mechanical Code. 5. Alcohol-based hand rubs classified as Class I or II liquids in dispensers that are installed in accordance with Sections 5705.5 and 5705.5.1. The location of the alcohol-based hand rub (ABHR) dispensers shall be provided in the construction documents. q. Where manufactured, generated or used in such a manner that the concentration and conditions create a fire or explosion hazard based on information prepared in accordance with Section 104.8.2. 50-7 HAZARDOUS MATERIALS—GENERAL PROVISIONS Telegram: EDUFIRE.IR

50-8 TABLE 5003.1.1(2) MAXIMUM ALLOWABLE QUANTITY PER CONTROL AREA OF HAZARDOUS MATERIALS POSING A HEALTH HAZARDa, c, f, h, i EDUFIRE.IR STORAGEb USE-CLOSED SYSTEMSb USE-OPEN SYSTEMSb HAZARDOUS MATERIALS—GENERAL PROVISIONS MATERIAL Solid poundsd, e Liquid gallons Gas cubic feet at NTP Solid poundsd Liquid gallons Gas cubic feet at NTP Solid poundsd Liquid gallons (pounds)d, e (pounds)d (pounds)d (pounds)d (pounds)d Corrosives 5,000 5,000 1,000 Highly toxics 500 Gaseous 810e 500 Gaseous 810e 100 Toxics Liquefied (150) Liquefied (150) Gaseous 20g Gaseous 20g 10 (10) Liquefied (4)g 10 (10) Liquefied (4)g 3 (3) 500 (500) Gaseous 810e 500 (500) Gaseous 810e 125 (125) Liquefied (150)e Liquefied (150)e For SI: 1 cubic foot = 0.02832 m3, 1 pound = 0.454 kg, 1 gallon = 3.785 L. a. For use of control areas, see Section 5003.8.3. b. The aggregate quantity in use and storage shall not exceed the quantity listed for storage. c. In retail and wholesale sales occupancies, the quantities of medicines, foodstuff or consumer products and cosmetics, containing not more than 50 percent by volume of water-miscible liquids and with the remainder of the solutions not being flammable, shall not be limited, provided that such materials are packaged in individual containers not exceeding 1.3 gallons. d. Maximum allowable quantities shall be increased 100 percent in buildings equipped throughout with an approved automatic sprinkler system in accordance with Section 903.3.1.1. Where Note e also applies, the increase for both notes shall be applied accumulatively. e. Maximum allowable quantities shall be increased 100 percent where stored in approved storage cabinets, gas cabinets or exhausted enclosures. Where Note d applies, the increase for both notes shall be applied accumulatively. f. For storage and display quantities in Group M and storage quantities in Group S occupancies complying with Section 5003.11, see Table 5003.11.1. g. Allowed only where stored in approved exhausted gas cabinets or exhausted enclosures. h. Quantities in parentheses indicate quantity units in parentheses at the head of each column. i. For gallons of liquids, divide the amount in pounds by 10 in accordance with Section 5003.1.2. 2021 INTERNATIONAL FIRE CODE® Telegram: EDUFIRE.IR

2021 INTERNATIONAL FIRE CODE® TABLE 5003.1.1(3) MAXIMUM ALLOWABLE QUANTITY PER CONTROL AREA OF HAZARDOUS MATERIALS POSING A PHYSICAL HAZARD IN AN OUTDOOR CONTROL AREAa, b, c, d EDUFIRE.IR STORAGEb USE-CLOSED SYSTEMSb USE-OPEN SYSTEMSb MATERIAL CLASS Solid pounds Liquid gallons Gas cubic feet at Solid pounds Liquid gallons Gas cubic feet at Solid pounds Liquid gallons (cubic feet) (pounds)d (pounds)d (pounds)d NTP (cubic feet) NTP (cubic feet) Flammable gas Gaseous Not Applicable Not Applicable 3,000 Not Applicable Not Applicable 1,500 Not Applicable Not Applicable Liquefied (300) Not Applicable (150) Not Applicable Flammable Not Applicable 500 Not Applicable Not Applicable 250 Not Applicable Not Applicable 50 Not Applicable solid Inert Gas Gaseous Not Applicable Not Applicable Not Limited Not Applicable Not Applicable Not Limited Not Applicable Not Applicable Liquefied Not Applicable Not Applicable Not Limited Not Applicable Not Applicable Not Limited Not Applicable Not Applicable Cryogenic inert Not Applicable Not Applicable Not Applicable Not Limited Not Applicable Not Applicable Not Limited Not Applicable Not Applicable Organic Unclassified 1 (1) Not Applicable 0.25 (0.25) Not Applicable 0.25 (0.25) peroxide Detonable I 20 (20) 10 (10) 2 (2) Organic II 200 (200) 100 (100) 20 (20) peroxide III 500 (500) Not Applicable 250 (250) Not Applicable 50 (50) IV Not Limited Not Limited Not Limited Not Limited Not Limited Not Limited V Not Limited Not Limited Not Limited Not Limited Not Limited Not Limited 42 (2) 1 (1) 0.25 (0.25) Oxidizer 3 40 (40) Not Applicable 20 (20) Not Applicable 4 (4) 2 1,000 (1,000) 500 (500) 100 (100) 1 Not Limited Not Limited Not Limited Not Limited Not Limited Not Limited Oxidizing gas Gaseous Not Applicable Not Applicable 6,000 Not Applicable Not Applicable 1,500 Not Applicable Not Applicable Liquefied (600) Not Applicable (300) Not Applicable HAZARDOUS MATERIALS—GENERAL PROVISIONS Pyrophoric Not 8 (8) 100 4 (4) 10 0 0 materials Applicable 42 (2) 20 1 (1) 2 0.25 (0.25) Unstable 3 20 (20) 200 10 (10) 10 1 (1) (reactive) 2 200 (200) 1,000 100 (100) 250 10 (10) 50-9 1 Not Limited Not Limited 1,500 Not Limited Not Limited Not Limited Not Limited Not Limited Telegram: EDUFIRE.IR 3 20 (20) 10 (10) 1 (1) Water reactive 2 200 (200) Not Applicable 100 (100) Not Applicable 10 (10) 1 Not Limited Not Limited Not Limited Not Limited Not Limited Not Limited For SI: 1 pound = 0.454 kg, 1 gallon = 3.785 L, 1 cubic foot = 0.02832 m3. a. For gallons of liquids, divide the amount in pounds by 10 in accordance with Section 5003.1.2. b. The aggregate quantities in storage and use shall not exceed the quantity listed for storage. c. The aggregate quantity of nonflammable solid and nonflammable or noncombustible liquid hazardous materials allowed in outdoor storage per single property under the same ownership or control used for retail or wholesale sales is allowed to exceed the maximum allowable quantity per control area where such storage is in accordance with Section 5003.11. d. Quantities in parentheses indicate quantity units in parentheses at the head of each column.

50-10 TABLE 5003.1.1(4) HAZARDOUS MATERIALS—GENERAL PROVISIONS MAXIMUM ALLOWABLE QUANTITY PER CONTROL AREA OF HAZARDOUS MATERIALS POSING A HEALTH HAZARD IN AN OUTDOOR CONTROL AREAa, b, c, f EDUFIRE.IR STORAGE USE-CLOSED SYSTEMS USE-OPEN SYSTEMS MATERIAL Solid pounds Liquid gallons Gas cubic feet at NTP Solid pounds Liquid gallons Gas cubic feet at NTP Solid pounds Liquid gallons (pounds) (pounds) (pounds) (pounds) (pounds) Corrosives 20,000 2,000 Gaseous 1,620 10,000 1,000 Gaseous 810 1,000 100 Liquefied (300) Liquefied (150) Highly toxics 20 Gaseous 40d 10 Gaseous 20d 3 (3) (20) Liquefied (8)d (10) Liquefied (4)d Toxics 1,000 (l,000)e Gaseous 1,620 500 50e Gaseous 810 125 (125)e Liquefied (300) Liquefied (150) For SI:1 cubic foot = 0.02832 m3, 1 pound = 0.454 kg, 1 gallon = 3.785 L, 1 pound per square inch absolute = 6.895 kPa,°C = (°F – 32)/1.8. a. For gallons of liquids, divide the amount in pounds by 10 in accordance with Section 5003.1.2. b. The aggregate quantities in storage and use shall not exceed the quantity listed for storage. c. The aggregate quantity of nonflammable solid and nonflammable or noncombustible liquid hazardous materials allowed in outdoor storage per single property under the same ownership or control used for retail or wholesale sales is allowed to exceed the maximum allowable quantity per control area where such storage is in accordance with Section 5003.11. d. Allowed only where used in approved exhausted gas cabinets, exhausted enclosures or under fume hoods. e. The maximum allowable quantity per control area for toxic liquids with vapor pressures in excess of 1 psia at 77°F shall be the maximum allowable quantity per control area listed for highly toxic liquids. f. Quantities in parentheses indicate quantity units in parentheses at the head of each column. 2021 INTERNATIONAL FIRE CODE® Telegram: EDUFIRE.IR

5003.2 Systems, equipment and processes. Systems, HAZARDOUS MATERIALS—GENERAL PROVISIONS equipment and processes utilized for storage, dispensing, use or handling of hazardous materials shall be in accordance ranking of 3 or 4 in accordance with NFPA 704 shall with Sections 5003.2.1 through 5003.2.9. be in accordance with ASME B31.3 and the following: 5003.2.1 Design and construction of containers, cylin- 1. Piping and tubing utilized for the transmission ders and tanks. Containers, cylinders and tanks shall be of highly toxic, toxic or highly volatile corro- designed and constructed in accordance with approved sive liquids and gases shall have welded, standards. Containers, cylinders, tanks and other means threaded or flanged connections throughout used for containment of hazardous materials shall be of except for connections located within a venti- an approved type. Pressure vessels not meeting DOTn lated enclosure if the material is a gas, or an requirements for transportation shall comply with the approved method of drainage or containment is ASME Boiler and Pressure Vessel Code. provided for connections if the material is a liquid. 5003.2.2 Piping, tubing, valves and fittings. Piping, tubing, valves, and fittings conveying hazardous materi- 2. Piping and tubing shall not be located within als shall be designed and installed in accordance with corridors, within any portion of a means of ASME B31.1 or other approved standards, and shall be in egress required to be enclosed in fire-resis- accordance with Sections 5003.2.2.1 and 5003.2.2.2. tance-rated construction or in concealed spaces in areas not classified as Group H occupancies. 5003.2.2.1 Design and construction. Piping, tubing, valves, fittings and related components used for Exception: Piping and tubing within the space hazardous materials shall be in accordance with the defined by the walls of corridors and the floor or following: roof above or in concealed spaces above other occu- pancies where installed in accordance with Section 1. Piping, tubing, valves, fittings and related 415.11.7.4 of the International Building Code for components shall be designed and fabricated Group H-5 occupancies. from materials that are compatible with the material to be contained and shall be of 5003.2.3 Equipment, machinery and alarms. Equip- adequate strength and durability to withstand ment, machinery and required detection and alarm the pressure, structural and seismic stress and systems associated with the use, storage or handling of exposure to which they are subject. hazardous materials shall be listed or approved. 2. Piping and tubing shall be identified in accor- 5003.2.4 Installation of tanks. Installation of tanks shall dance with ASME A13.1 to indicate the be in accordance with Sections 5003.2.4.1 through material conveyed. 5003.2.4.2.1. 3. Manual valves or automatic remotely activated 5003.2.4.1 Underground tanks. Underground tanks fail-safe emergency shutoff valves shall be used for the storage of liquid hazardous materials shall installed on supply piping and tubing and be provided with secondary containment. In lieu of provided with ready access at the following providing secondary containment for an underground locations: tank, an above-ground tank in an underground vault complying with Section 5704.2.8 shall be permitted. 3.1. The point of use. 5003.2.4.2 Above-ground tanks. Above-ground 3.2. The tank, cylinder or bulk source. stationary tanks used for the storage of hazardous materials shall be located and protected in accordance 4. Manual emergency shutoff valves and controls with the requirements for outdoor storage of the partic- for remotely activated emergency shutoff ular material involved. valves shall be clearly visible, provided with ready access and identified in an approved Exception: Above-ground tanks that are installed in manner. vaults complying with Section 5303.16 or 5704.2.8 shall not be required to comply with location and 5. Backflow prevention or check valves shall be protection requirements for outdoor storage. provided where the backflow of hazardous materials could create a hazardous condition or 5003.2.4.2.1 Marking. Above-ground stationary cause the unauthorized discharge of hazardous tanks shall be marked as required by Section 5003.5. materials. 5003.2.5 Empty containers and tanks. Empty contain- Exceptions: ers and tanks previously used for the storage of hazardous materials shall be free from residual material and vapor as 1. Piping for inlet connections designed to defined by DOTn, the Resource Conservation and Recov- prevent backflow. ery Act (RCRA) or other regulating authority or maintained as specified for the storage of hazardous 2. Piping for pressure relief devices. material. 5003.2.2.2 Additional regulations for supply piping 5003.2.6 Maintenance. In addition to the requirements of for health-hazard materials. Supply piping and Section 5003.2.3, equipment, machinery and required tubing for gases and liquids having a health-hazard detection and alarm systems associated with hazardous 2021 INTERNATIONAL FIRE CODE® 50-11 EDUFIRE.IR Telegram: EDUFIRE.IR

HAZARDOUS MATERIALS—GENERAL PROVISIONS materials shall be maintained in an operable condition. 5. Approved maintenance in accordance with Defective containers, cylinders and tanks shall be Section 5003.2.6 that is performed not less than removed from service, repaired or disposed of in an annually or in accordance with an approved approved manner. Defective equipment or machinery schedule shall be allowed to meet the testing shall be removed from service and repaired or replaced. requirements set forth in Sections 5003.2.9.1 Required detection and alarm systems shall be replaced or and 5003.2.9.2. repaired where defective. 5003.2.9.1 Equipment, devices and systems requir- 5003.2.6.1 Tanks out of service for 90 days. Station- ing testing. The following equipment, systems and ary tanks not used for a period of 90 days shall be devices shall be tested in accordance with Sections properly safeguarded or removed in an approved 5003.2.9 and 5003.2.9.2. manner. Such tanks shall have the fill line, gauge opening and pump connection secured against tamper- 1. Gas detection systems, alarms and automatic ing. Vent lines shall be properly maintained. emergency shutoff valves required by Section 6004.2.2.10 for highly toxic and toxic gases. 5003.2.6.1.1 Return to service. Tanks that are to be placed back in service shall be tested in an approved 2. Limit control systems for liquid level, tempera- manner. ture and pressure required by Sections 5003.2.7, 5004.8 and 5005.1.4. 5003.2.6.2 Defective containers and tanks. Defective containers and tanks shall be removed from service, 3. Emergency alarm systems and supervision repaired in accordance with approved standards or required by Sections 5004.9 and 5005.4.4. disposed of in an approved manner. 4. Monitoring and supervisory systems required 5003.2.7 Liquid-level limit control. Atmospheric tanks by Sections 5004.10 and 5005.1.6. having a capacity greater than 500 gallons (1893 L) and that contain hazardous material liquids shall be equipped 5. Manually activated shutdown controls required with a liquid-level limit control or other approved means by Section 6403.1.1.1 for compressed gas to prevent overfilling of the tank. systems conveying pyrophoric gases. 5003.2.8 Seismic protection. Machinery and equipment 5003.2.9.2 Testing frequency. The equipment, utilizing hazardous materials shall be braced and systems and devices listed in Section 5003.2.9.1 shall anchored in accordance with the seismic design require- be tested at one of the following frequencies: ments of the International Building Code for the seismic design category in which the machinery or equipment is 1. Not less than annually. classified. 2. In accordance with the approved manufac- 5003.2.9 Testing. The equipment, devices and systems turer’s requirements. listed in Section 5003.2.9.1 shall be tested at the time of installation and at one of the intervals listed in Section 3. In accordance with approved recognized indus- 5003.2.9.2. Records of the tests conducted or mainte- try standards. nance performed shall be maintained in accordance with the provisions of Section 109.3. 4. In accordance with an approved schedule. Exceptions: 5003.3 Release of hazardous materials. Hazardous materi- als in any quantity shall not be released into a sewer, storm 1. Periodic testing shall not be required where drain, ditch, drainage canal, creek, stream, river, lake or tidal approved written documentation is provided waterway or on the ground, sidewalk, street, highway or into stating that testing will damage the equipment, the atmosphere. device or system and the equipment, device or system is maintained as specified by the Exceptions: manufacturer. 1. The release or emission of hazardous materials is 2. Periodic testing shall not be required for equip- allowed where in compliance with federal, state or ment, devices and systems that fail in a fail- local governmental agencies, regulations or safe manner. permits. 3. Periodic testing shall not be required for equip- 2. The release of pesticides is allowed where used in ment, devices and systems that self-diagnose accordance with registered label directions. and report trouble. Records of the self-diagno- sis and trouble reporting shall be made 3. The release of fertilizer and soil amendments is available to the fire code official. allowed where used in accordance with manufac- turer’s specifications. 4. Periodic testing shall not be required if system activation occurs during the required test cycle 5003.3.1 Unauthorized discharges. In the event hazard- for the components activated during the test ous materials are released in quantities reportable under cycle. state, federal or local regulations, the fire code official shall be notified and the following procedures required in accordance with Sections 5003.3.1.1 through 5003.3.1.4. 50-12 2021 INTERNATIONAL FIRE CODE® EDUFIRE.IR Telegram: EDUFIRE.IR

HAZARDOUS MATERIALS—GENERAL PROVISIONS 5003.3.1.1 Records. Records of the unauthorized ity or area. Designated areas within such facilities discharge of hazardous materials by the permittee shall where smoking is permitted either permanently or be maintained. temporarily, shall be identified with signs desig- nating that smoking is permitted in these areas 5003.3.1.2 Preparation. Provisions shall be made for only. controlling and mitigating unauthorized discharges. 4. In rooms or areas where flammable or combusti- 5003.3.1.3 Control. Where an unauthorized discharge ble hazardous materials are stored, dispensed or caused by primary container failure is discovered, the used. involved primary container shall be repaired or removed from service. Signs required by this section shall be in English as a primary language or in symbols allowed by this code and 5003.3.1.4 Responsibility for cleanup. The person, shall comply with Section 310. firm or corporation responsible for an unauthorized discharge shall institute and complete all actions 5003.7.2 Open flames. Open flames and high-tempera- necessary to remedy the effects of such unauthorized ture devices shall not be used in a manner that creates a discharge, whether sudden or gradual, without cost to hazardous condition and shall be listed for use with the the jurisdiction. Where deemed necessary by the fire hazardous materials stored or used. code official, cleanup can be initiated by the fire department or by an authorized individual or firm. 5003.7.3 Industrial trucks. Powered industrial trucks Costs associated with such cleanup shall be borne by used in areas designated as hazardous (classified) loca- the owner, operator or other person responsible for the tions shall be in accordance with Section 309.2. unauthorized discharge. 5003.7.4 Respiratory therapy. In Group I-2 and ambula- 5003.4 Safety Data Sheets. Safety Data Sheets (SDS) shall tory care facilities, within areas with respiratory therapy be readily available on the premises for hazardous materials services, sources of ignition shall be regulated in accor- regulated by this chapter. Where a hazardous substance is dance with NFPA 99. developed in a laboratory, available information shall be documented. 5003.8 Construction requirements. Buildings, control areas, enclosures and cabinets for hazardous materials shall Exception: Designated hazardous waste. be in accordance with Sections 5003.8.1 through 5003.8.7.2. 5003.5 Hazard identification signs. Unless otherwise 5003.8.1 Buildings. Buildings, or portions thereof, in exempted by the fire code official, visible hazard identifica- which hazardous materials are stored, handled or used tion signs as specified in NFPA 704 for the specific material shall be constructed in accordance with the International contained shall be placed on stationary containers and Building Code. above-ground tanks and at entrances to locations where hazardous materials are stored, dispensed, used or handled in 5003.8.2 Required detached buildings. Group H occu- quantities requiring a permit and at specific entrances and pancies containing quantities of hazardous materials in locations designated by the fire code official. excess of those set forth in Table 5003.8.2 shall be in detached buildings. 5003.5.1 Markings. Individual containers, cartons or packages shall be conspicuously marked or labeled in an 5003.8.3 Control areas. Control areas shall comply with approved manner. Rooms or cabinets containing Sections 5003.8.3.1 through 5003.8.3.5.3. compressed gases shall be conspicuously labeled: “COMPRESSED GAS.” Exception: Higher education laboratories in accor- dance with Chapter 38 of this code and Section 428 of 5003.6 Signs. Signs and markings required by Sections the International Building Code. 5003.5 and 5003.5.1 shall not be obscured or removed, shall be in English as a primary language or in symbols allowed 5003.8.3.1 Construction requirements. Control by this code, shall be durable, and the size, color and letter- areas shall be separated from each other by fire barri- ing shall be approved. ers constructed in accordance with Section 707 of the International Building Code or horizontal assemblies 5003.7 Sources of ignition. Sources of ignition shall comply constructed in accordance with Section 711 of the with Sections 5003.7.1 through 5003.7.3. International Building Code, or both. 5003.7.1 Smoking. Smoking shall be prohibited and “No 5003.8.3.2 Percentage of maximum allowable quan- Smoking” signs provided as follows: tities. The percentage of maximum allowable quantities of hazardous materials per control area 1. In rooms or areas where hazardous materials are allowed at each story within a building shall be in stored or dispensed or used in open systems in accordance with Table 5003.8.3.2. amounts requiring a permit in accordance with Section 5001.5. 5003.8.3.3 Number. The maximum number of control areas per floor within a building shall be in accordance 2. Within 25 feet (7620 mm) of outdoor storage, with Table 5003.8.3.2. For the purposes of determin- dispensing or open use areas. ing the number of control areas within a building, each portion of a building separated by one or more 3. Facilities or areas within facilities that have been fire walls complying with Section 706 of the Interna- designated as totally “no smoking” shall have “No tional Building Code shall be considered a separate Smoking” signs placed at all entrances to the facil- building. 2021 INTERNATIONAL FIRE CODE® 50-13 EDUFIRE.IR Telegram: EDUFIRE.IR

HAZARDOUS MATERIALS—GENERAL PROVISIONS TABLE 5003.8.2 DETACHED BUILDING REQUIRED A DETACHED BUILDING IS REQUIRED WHERE THE QUANTITY OF MATERIAL EXCEEDS THAT LISTED HEREIN Material Class Solids and liquids (tons)a, b Gases (cubic feet)a, b Explosives Division 1.1 Maximum Allowable Quantity Not Applicable Maximum Allowable Quantity Division 1.2 Maximum Allowable Quantity Maximum Allowable Quantity Division 1.3 1 Division 1.4 Maximum Allowable Quantity Division 1.4c Maximum Allowable Quantity Division 1.5 Division 1.6 Oxidizers Class 4 Maximum Allowable Quantity Maximum Allowable Quantity Unstable (reactives) detonable Class 3 or 4 Maximum Allowable Quantity Maximum Allowable Quantity Oxidizer, liquids and solids Class 3 1,200 Not Applicable Class 2 2,000 Organic peroxides Detonable Maximum Allowable Quantity Not Applicable Class I Maximum Allowable Quantity Class II Class III 25 50 Unstable (reactives) nondetonable Class 3 125 2,000 Class 2 10,000 Water reactives Class 3 125 Not Applicable Class 2 Pyrophoric gasesd Not Applicable Not Applicable 2,000 For SI: 1 pound = 0.454 kg, 1 cubic foot = 0.02832 m3, 1 ton = 2000 lb = 907.2 kg. a. For materials that are detonable, the distance to other buildings or lot lines shall be in accordance with Section 415.6 of the International Building Code or Chapter 56 based on the trinitrotoluene (TNT) equivalence of the material, whichever is greater. b. “Maximum Allowable Quantity” means the maximum allowable quantity per control area set forth in Table 5003.1.1(1). c. Limited to Division 1.4 materials and articles, including articles packaged for shipment, that are not regulated as an explosive under Bureau of Alcohol, Tobacco, Firearms and Explosives regulations, or unpackaged articles used in process operations that do not propagate a detonation or deflagration between articles, providing the net explosive weight of individual articles does not exceed 1 pound. d. Detached buildings are not required for gases in gas rooms that support H-5 fabrication facilities where the gas room is separated from other areas by a fire barrier with a fire-resistance rating of not less than 2 hours and the gas is located in a gas cabinet that is internally sprinklered, equipped with continuous leak detection, automatic shutdown, and is not manifolded upstream of pressure controls. The gas supply is limited to cylinders that do not exceed 125 pounds water capacity in accordance with DOTn 49 CFR 173.192 for Hazard Zone A toxic gases. TABLE 5003.8.3.2 DESIGN AND NUMBER OF CONTROL AREAS STORY PERCENTAGE OF THE NUMBER OF CONTROL FIRE-RESISTANCE RATING MAXIMUM ALLOWABLE AREAS PER STORY FOR FIRE BARRIERS IN HOURSb QUANTITY PER CONTROL AREAa 2 2 Higher than 9 5 1 2 2 7–9 5 2 2 1 6 12.5 2 1 1 Above grade plane 5 12.5 2 1 Below grade plane 1 4 12.5 2 Not Allowed 3 50 2 2 75 3 1 100 4 1 75 3 2 50 2 Lower than 2 Not Allowed Not Allowed a. Percentages shall be of the maximum allowable quantity per control area shown in Tables 5003.1.1(1) and 5003.1.1(2), with all increases allowed in the footnotes to those tables. b. Separation shall include fire barriers and horizontal assemblies as necessary to provide separation from other portions of the building. 50-14 2021 INTERNATIONAL FIRE CODE® EDUFIRE.IR Telegram: EDUFIRE.IR

5003.8.3.4 Fire-resistance-rating requirements. The HAZARDOUS MATERIALS—GENERAL PROVISIONS required fire-resistance rating for fire barriers shall be in accordance with Table 5003.8.3.2. The floor assem- 5003.8.4.2 Ventilation system. The ventilation system bly of the control area and the construction supporting for gas rooms shall be designed to operate at a negative the floor of the control area shall have a fire-resis- pressure in relation to the surrounding area. Highly tance rating of not less than 2 hours. toxic and toxic gases shall also comply with Section 6004.2.2.6. The ventilation system shall be installed in Exception: The floor assembly of the control area accordance with the International Mechanical Code. and the construction supporting the floor of the control area is allowed to be 1-hour fire-resistance 5003.8.5 Exhausted enclosures. Where an exhausted rated in buildings of Types IIA, IIIA, IV and VA enclosure is used to increase maximum allowable quantity construction, provided that both of the following per control area or where the location of hazardous mate- conditions exist: rials in exhausted enclosures is provided to comply with the provisions of Chapter 60, the exhausted enclosure 1. The building is equipped throughout with shall be in accordance with Sections 5003.8.5.1 through an automatic sprinkler system in accor- 5003.8.5.3. dance with Section 903.3.1.1. 5003.8.5.1 Construction. Exhausted enclosures shall 2. The building is three stories or less above be of noncombustible construction. grade plane. 5003.8.5.2 Ventilation. Exhausted enclosures shall be 5003.8.3.5 Hazardous materials in Group M provided with an exhaust ventilation system. The display and storage areas and in Group S storage ventilation system for exhausted enclosures shall be areas. Hazardous materials located in Group M and designed to operate at a negative pressure in relation to Group S occupancies shall be in accordance with the surrounding area. Ventilation systems used for Sections 5003.8.3.5.1 through 5003.8.3.5.3. highly toxic and toxic gases shall also comply with Items 1, 2 and 3 of Section 6004.1.3. The ventilation 5003.8.3.5.1 Nonflammable solids and nonflam- system shall be installed in accordance with the Inter- mable and noncombustible liquids. The aggregate national Mechanical Code. quantity of nonflammable solid and nonflammable or noncombustible liquid hazardous materials 5003.8.5.3 Fire-extinguishing system. Exhausted allowed within a single control area of a Group M enclosures where flammable materials are used shall display and storage area or a Group S storage area is be protected by an approved automatic fire-extinguish- allowed to exceed the maximum allowable quanti- ing system in accordance with Chapter 9. ties per control area specified in Tables 5003.1.1(1) and 5003.1.1(2) without classifying the building or 5003.8.6 Gas cabinets. Where a gas cabinet is used to use as a Group H occupancy, provided that the mate- increase the maximum allowable quantity per control rials are displayed and stored in accordance with area or where the location of compressed gases in gas Section 5003.11. cabinets is provided to comply with the provisions of Chapter 60, the gas cabinet shall be in accordance with 5003.8.3.5.2 Flammable and combustible liquids. Sections 5003.8.6.1 through 5003.8.6.3. In Group M occupancy wholesale and retail sales uses, indoor storage of flammable and combustible 5003.8.6.1 Construction. Gas cabinets shall be liquids shall not exceed the maximum allowable constructed with the following: quantities per control area as indicated in Table 5704.3.4.1, provided that the materials are displayed 1. Not less than 0.097-inch (2.5 mm) (No. 12 and stored in accordance with Chapter 57. gage) steel. 5003.8.3.5.3 Aerosols. The maximum quantity of 2. Self-closing limited access ports or noncom- aerosol products in Group M occupancy retail bustible windows to give access to equipment display areas, storage areas adjacent to retail display controls. areas and retail storage areas shall be in accordance with Chapter 51. 3. Self-closing doors. 4. Interiors treated, coated or constructed of mate- 5003.8.4 Gas rooms. Where a gas room is used to increase the maximum allowable quantity per control rials that are compatible with the hazardous area or provided to comply with the provisions of Chap- materials stored. Such treatment, coating or ter 60, the gas room shall be in accordance with Sections construction shall include the entire interior of 5003.8.4.1 and 5003.8.4.2. the cabinet. 5003.8.4.1 Construction. Gas rooms shall be 5003.8.6.2 Ventilation. Gas cabinets shall be provided protected with an automatic sprinkler system. Gas with an exhaust ventilation system. The ventilation rooms shall be separated from the remainder of the system for gas cabinets shall be designed to operate at building in accordance with the requirements of the a negative pressure in relation to the surrounding area. International Building Code based on the occupancy Ventilation systems used for highly toxic and toxic group into which it has been classified. gases shall also comply with Items 1, 2 and 3 of Section 6004.1.2. The ventilation system shall be 2021 INTERNATIONAL FIRE CODE® installed in accordance with the International Mechan- ical Code. EDUFIRE.IR 50-15 Telegram: EDUFIRE.IR

HAZARDOUS MATERIALS—GENERAL PROVISIONS 5003.9.3 Protection from vehicles. Guard posts or other approved means shall be provided to protect storage tanks 5003.8.6.3 Maximum number of cylinders per gas and connected piping, valves and fittings; dispensing cabinet. The number of cylinders contained in a single areas; and use areas subject to vehicular damage in accor- gas cabinet shall not exceed three. dance with Section 312. 5003.8.7 Hazardous materials storage cabinets. Where 5003.9.4 Electrical wiring and equipment. Electrical storage cabinets are used to increase maximum allowable wiring and equipment shall be installed and maintained in quantity per control area or to comply with this chapter, accordance with NFPA 70. such cabinets shall be in accordance with Sections 5003.8.7.1 and 5003.8.7.2. 5003.9.5 Static accumulation. Where processes or conditions exist where a flammable mixture could be 5003.8.7.1 Construction. The interior of cabinets ignited by static electricity, means shall be provided to shall be treated, coated or constructed of materials that prevent the accumulation of a static charge. are nonreactive with the hazardous material stored. Such treatment, coating or construction shall include 5003.9.6 Protection from light. Materials that are sensi- the entire interior of the cabinet. Cabinets shall either tive to light shall be stored in containers designed to be listed in accordance with UL 1275 as suitable for protect them from such exposure. the intended storage or constructed in accordance with the following: 5003.9.7 Shock padding. Materials that are shock sensi- tive shall be padded, suspended or otherwise protected 1. Cabinets shall be of steel having a thickness of against accidental dislodgement and dislodgement during not less than 0.0478 inch (1.2 mm) (No. 18 seismic activity. gage). The cabinet, including the door, shall be double walled with a 11/2-inch (38 mm) 5003.9.8 Separation of incompatible materials. Incom- airspace between the walls. Joints shall be patible materials in storage and storage of materials that riveted or welded and shall be tight fitting. are incompatible with materials in use shall be separated Doors shall be well fitted, self-closing and where the stored materials are in containers having a equipped with a self-latching device. capacity of more than 5 pounds (2 kg), 0.5 gallon (2 L) or any amount of compressed gases. Separation shall be 2. The bottoms of cabinets utilized for the storage accomplished by: of liquids shall be liquid tight to a minimum height of 2 inches (51 mm). 1. Segregating incompatible materials in storage by a distance of not less than 20 feet (6096 mm). Electrical equipment and devices within cabinets used for the storage of hazardous gases or liquids shall 2. Isolating incompatible materials in storage by a be in accordance with NFPA 70. noncombustible partition extending not less than 18 inches (457 mm) above and to the sides of the 5003.8.7.2 Warning markings. Cabinets shall be stored material. clearly identified in an approved manner with red letters on a contrasting background to read: 3. Storing liquid and solid materials in hazardous material storage cabinets. HAZARDOUS—KEEP FIRE AWAY 4. Storing compressed gases in gas cabinets or 5003.9 General safety precautions. General precautions for exhausted enclosures in accordance with Sections the safe storage, handling or care of hazardous materials 5003.8.5 and 5003.8.6. shall be in accordance with Sections 5003.9.1 through 5003.9.10. Materials that are incompatible shall not be stored within the same cabinet or exhausted enclosure. 5003.9.1 Personnel training and written procedures. Persons responsible for the operation of areas in which 5003.9.9 Shelf storage. Shelving shall be of substantial hazardous materials are stored, dispensed, handled or construction, and shall be braced and anchored in accor- used shall be familiar with the chemical nature of the dance with the seismic design requirements of the materials and the appropriate mitigating actions necessary International Building Code for the seismic zone in in the event of fire, leak or spill. which the material is located. Shelving shall be treated, coated or constructed of materials that are compatible 5003.9.1.1 Fire department liaison. Responsible with the hazardous materials stored. Shelves shall be persons shall be designated and trained to be liaison provided with a lip or guard where used for the storage of personnel to the fire department. These persons shall individual containers. aid the fire department in preplanning emergency responses and identifying the locations where hazard- Shelf storage of hazardous materials shall be main- ous materials are located, and shall have access to tained in an orderly manner. Safety Data Sheets and be knowledgeable in the site’s emergency response procedures. Exceptions: 5003.9.2 Security. Storage, dispensing, use and handling 1. Storage in hazardous material storage cabinets areas shall be secured against unauthorized entry and or laboratory furniture specifically designed for safeguarded in a manner approved by the fire code such use. official. 2021 INTERNATIONAL FIRE CODE® 50-16 Telegram: EDUFIRE.IR EDUFIRE.IR

HAZARDOUS MATERIALS—GENERAL PROVISIONS 2. Storage of hazardous materials in amounts not shall have a means of restraining containers to prevent requiring a permit in accordance with Section accidental dislodgement. Compressed gas cylinders 5001.5. placed on carts and trucks shall be individually restrained. 5003.9.10 Safety cans. Safety cans shall be listed in accordance with UL 30 where used to increase the maxi- 5003.10.3.2 Speed-control devices. Carts and trucks mum allowable quantities per control area of flammable shall be provided with a device that will enable the or combustible liquids in accordance with Table operator to control safely movement by providing 5003.1.1(1). Safety cans listed in accordance with UL stops or speed-reduction devices. 1313 are allowed for flammable and combustible liquids where not used to increase the maximum allowable quan- 5003.10.3.3 Construction. Construction materials for tities per control area and for other hazardous material hazardous material carts or trucks shall be compatible liquids in accordance with the listing. with the material transported. The cart or truck shall be of substantial construction. 5003.10 Handling and transportation. In addition to the requirements of Section 5003.2, the handling and transporta- 5003.10.3.4 Spill control. Carts and trucks transport- tion of hazardous materials in corridors or enclosures for ing liquids shall be capable of containing a spill from stairways and ramps shall be in accordance with Sections the largest single container transported. 5003.10.1 through 5003.10.3.6. 5003.10.3.5 Attendance. Carts and trucks used to 5003.10.1 Valve protection. Hazardous material gas transport materials shall not obstruct or be left unat- containers, cylinders and tanks in transit shall have their tended within any part of a means of egress. protective caps in place. Containers, cylinders and tanks of highly toxic or toxic compressed gases shall have their 5003.10.3.6 Incompatible materials. Incompatible valve outlets capped or plugged with an approved closure materials shall not be transported on the same cart or device in accordance with Chapter 53. truck. 5003.10.2 Carts and trucks required. Liquids in 5003.11 Group M storage and display and Group S stor- containers exceeding 5 gallons (19 L) in a corridor or age. The aggregate quantity of nonflammable solid and enclosure for a stairway or ramp shall be transported on a nonflammable or noncombustible liquid hazardous materials cart or truck. Containers of hazardous materials having a stored and displayed within a single control area of a Group hazard ranking of 3 or 4 in accordance with NFPA 704 M occupancy, or an outdoor control area, or stored in a and transported within corridors or interior exit stairways single control area of a Group S occupancy, is allowed to and ramps, shall be on a cart or truck. Where carts and exceed the maximum allowable quantity per control area trucks are required for transporting hazardous materials, indicated in Section 5003.1 where in accordance with they shall be in accordance with Section 5003.10.3. Sections 5003.11.1 through 5003.11.3.11. Exceptions: 5003.11.1 Maximum allowable quantity per control area in Group M or S occupancies. The aggregate 1. Two hazardous material liquid containers that amount of nonflammable solid and nonflammable or are hand carried in acceptable safety carriers. noncombustible liquid hazardous materials stored and displayed within a single control area of a Group M 2. Not more than four drums not exceeding 55 occupancy or stored in a single control area of a Group S gallons (208 L) each that are transported by occupancy shall not exceed the amounts set forth in Table suitable drum trucks. 5003.11.1. 3. Containers and cylinders of compressed gases 5003.11.2 Maximum allowable quantity per outdoor that are transported by approved hand trucks, control area in Group M or S occupancies. The aggre- and containers and cylinders not exceeding 25 gate amount of nonflammable solid and nonflammable or pounds (11 kg) that are hand carried. noncombustible liquid hazardous materials stored and displayed within a single outdoor control area of a Group 4. Solid hazardous materials not exceeding 100 M occupancy shall not exceed the amounts set forth in pounds (45 kg) that are transported by Table 5003.11.1. approved hand trucks, and a single container not exceeding 50 pounds (23 kg) that is hand 5003.11.3 Storage and display. Storage and display shall carried. be in accordance with Sections 5003.11.3.1 through 5003.11.3.11. 5003.10.3 Carts and trucks. Carts and trucks required by Section 5003.10.2 to be used to transport hazardous materi- 5003.11.3.1 Density. Storage and display of solids als shall be in accordance with Sections 5003.10.3.1 shall not exceed 200 pounds per square foot (976 through 5003.10.3.6. kg/m2) of floor area actually occupied by solid merchandise. Storage and display of liquids shall not 5003.10.3.1 Design. Carts and trucks used to transport exceed 20 gallons per square foot (0.50 L/m2) of floor hazardous materials shall be designed to provide a area actually occupied by liquid merchandise. stable base for the commodities to be transported and 2021 INTERNATIONAL FIRE CODE® 50-17 EDUFIRE.IR Telegram: EDUFIRE.IR

HAZARDOUS MATERIALS—GENERAL PROVISIONS TABLE 5003.11.1 MAXIMUM ALLOWABLE QUANTITY PER INDOOR AND OUTDOOR CONTROL AREA IN GROUP M AND S OCCUPANCIES—NONFLAMMABLE SOLIDS, NONFLAMMABLE AND NONCOMBUSTIBLE LIQUIDSd, e, f CONDITION MAXIMUM ALLOWABLE QUANTITY PER CONTROL AREA Materiala Class Solids (pounds) Liquids (gallons) A. Health-Hazard Materials—Nonflammable and Noncombustible Solids and Liquids 1. Corrosivesb, c Not Applicable 9,750 975 2. Highly toxics 2b, c 3. Toxicsb, c Not Applicable 20b, c 100 Not Applicable 1,000k 1. Oxidizersb, c B. Physical-Hazard Materials—Nonflammable and Noncombustible Solids and Liquids Not Allowed 2. Unstable (reactives)b, c 135 3. Water reactives 4 Not Allowed 225 3 1,350g 2 2,250h 1,800i, j 1 18,000i, j Not Allowed 4 Not Allowed 3 550 55 2 1,150 115 1 Not Limited Not Limited 3b, c 550 55 2b, c 1,150 115 1 Not Limited Not Limited For SI: 1 pound = 0.454 kg, 1 gallon = 3.785 L, 1 cubic foot = 0.02832 m3. a. Hazard categories are as specified in Section 5001.2.2. b. Maximum allowable quantities shall be increased 100 percent in buildings equipped throughout with an approved automatic sprinkler system in accordance with Section 903.3.1.1. Where Note c applies, the increase for both notes shall be applied accumulatively. c. Maximum allowable quantities shall be increased 100 percent where stored in approved storage cabinets in accordance with Section 5003.8. Where Note b applies, the increase for both notes shall be applied accumulatively. d. See Table 5003.8.3.2 for design and number of control areas. e. Maximum allowable quantities for other hazardous material categories shall be in accordance with Section 5003.1. f. Maximum allowable quantities shall be increased 100 percent in outdoor control areas. g. Maximum allowable quantities shall be increased to 2,250 pounds where individual packages are in the original sealed containers from the manufacturer or packager and do not exceed 10 pounds each. h. Maximum allowable quantities shall be increased to 4,500 pounds where individual packages are in the original sealed containers from the manufacturer or packager and do not exceed 10 pounds each. i. Quantities are unlimited where protected by an automatic sprinkler system. j. Quantities are unlimited in an outdoor control area. k. Maximum allowable quantity of consumer products shall be increased to 10,000 pounds where individual packages are in the original sealed containers from the manufacturer and the toxic classification is exclusively based on the LC50 threshold and no other hazardous materials classifications apply. 5003.11.3.2 Storage and display height. Display 5003.11.3.6 Container size. Individual containers height shall not exceed 6 feet (1829 mm) above the shall not exceed 100 pounds (45 kg) for solids or 10 finished floor in display areas of Group M occupan- gallons (38 L) for liquids in storage and display areas. cies. Storage height shall not exceed 8 feet (2438 mm) above the finished floor in storage areas of Group M 5003.11.3.7 Incompatible materials. Incompatible and Group S occupancies. materials shall be separated in accordance with Section 5003.9.8. 5003.11.3.3 Container location. Individual containers less than 5 gallons (19 L) or less than 25 pounds (11 5003.11.3.8 Floors. Floors shall be in accordance with kg) shall be stored or displayed on pallets, racks or Section 5004.12. shelves. 5003.11.3.9 Aisles. Aisles 4 feet (1219 mm) in width 5003.11.3.4 Racks and shelves. Racks and shelves shall be maintained on three sides of the storage or used for storage or display shall be in accordance with display area. Section 5003.9.9. 5003.11.3.10 Signs. Hazard identification signs shall 5003.11.3.5 Container type. Containers shall be be provided in accordance with Section 5003.5. approved for the intended use and identified as to their content. 5003.11.3.11 Storage plan. A storage plan illustrating the intended storage arrangement, including the loca- 50-18 2021 INTERNATIONAL FIRE CODE® EDUFIRE.IR Telegram: EDUFIRE.IR

HAZARDOUS MATERIALS—GENERAL PROVISIONS tion and dimensions of aisles, and storage racks shall 5004.2 Spill control and secondary containment for be provided. liquid and solid hazardous materials. Rooms, buildings or areas used for the storage of liquid or solid hazardous materi- 5003.12 Outdoor control areas. Outdoor control areas for als shall be provided with spill control and secondary hazardous materials shall be in accordance with the follow- containment in accordance with Sections 5004.2.1 through ing general requirements: 5004.2.3. 1. Outdoor control areas shall be kept free from weeds, Exception: Outdoor storage of containers on approved debris and common combustible materials not neces- containment pallets in accordance with Section 5004.2.3. sary to the storage. The area surrounding an outdoor control area shall be kept clear of such materials for 5004.2.1 Spill control for hazardous material liquids. not less than 15 feet (4572 mm). Rooms, buildings or areas used for the storage of hazard- ous material liquids in individual vessels having a 2. Outdoor control areas shall be located not closer capacity of more than 55 gallons (208 L), or in which the than 20 feet (6096 mm) from a public street, public aggregate capacity of multiple vessels exceeds 1,000 alley, public way or lot line that can be built on. gallons (3785 L), shall be provided with spill control to prevent the flow of liquids to adjoining areas. Floors in Exceptions: indoor locations and similar surfaces in outdoor locations shall be constructed to contain a spill from the largest 1. For solid and liquid hazardous materials, a single vessel by one of the following methods: 2-hour fire-resistance-rated wall without openings extending not less than 30 inches 1. Liquid-tight sloped or recessed floors in indoor (762 mm) above and to the sides of the locations or similar areas in outdoor locations. storage area shall be allowed in lieu of such distance. 2. Liquid-tight floors in indoor locations or similar areas in outdoor locations provided with liquid- 2. For compressed gas hazardous materials, tight raised or recessed sills or dikes. unless otherwise specified, the minimum required distances shall not apply where 3. Sumps and collection systems. fire barriers without openings or penetra- tions having a minimum fire-resistance 4. Other approved engineered systems. rating of 2 hours interrupt the line of sight between the storage and the exposure. The Except for surfacing, the floors, sills, dikes, sumps and configuration of the fire barrier shall be collection systems shall be constructed of noncombusti- designed to allow natural ventilation to ble material, and the liquid-tight seal shall be compatible prevent the accumulation of hazardous gas with the material stored. Where liquid-tight sills or dikes concentrations. are provided, they are not required at perimeter openings having an open-grate trench across the opening that 3. Where a property exceeds 10,000 square feet (929 connects to an approved collection system. m2), a group of two outdoor control areas is allowed where approved and where each control area is sepa- 5004.2.2 Secondary containment for hazardous mate- rated by a minimum distance of 50 feet (15 240 mm). rial liquids and solids. Where required by Table 5004.2.2, buildings, rooms or areas used for the storage of 4. Where a property exceeds 35,000 square feet (3252 hazardous materials liquids or solids shall be provided m2), additional groups of outdoor control areas are with secondary containment in accordance with this allowed where approved and where each group is section where the capacity of an individual vessel or the separated by a minimum distance of 300 feet (91 440 aggregate capacity of multiple vessels exceeds both of the mm). following: SECTION 5004 1. Liquids: Capacity of an individual vessel exceeds STORAGE 55 gallons (208 L) or the aggregate capacity of multiple vessels exceeds 1,000 gallons (3785 L). 5004.1 Scope. Storage of hazardous materials in amounts exceeding the maximum allowable quantity per control area 2. Solids: Capacity of an individual vessel exceeds as set forth in Section 5003.1 shall be in accordance with 550 pounds (250 kg) or the aggregate capacity of Sections 5001, 5003 and 5004. Storage of hazardous materi- multiple vessels exceeds 10,000 pounds (4540 als in amounts not exceeding the maximum allowable kg). quantity per control area as set forth in Section 5003.1 shall be in accordance with Sections 5001 and 5003. Retail and 5004.2.2.1 Containment and drainage methods. The wholesale storage and display of nonflammable solid and building, room or area shall contain or drain the nonflammable and noncombustible liquid hazardous materi- hazardous materials and fire protection water through als in Group M occupancies and Group S storage shall be in the use of one of the following methods: accordance with Section 5003.11. 1. Liquid-tight sloped or recessed floors in indoor locations or similar areas in outdoor locations. 2. Liquid-tight floors in indoor locations or simi- lar areas in outdoor locations provided with liquid-tight raised or recessed sills or dikes. 2021 INTERNATIONAL FIRE CODE® 50-19 EDUFIRE.IR Telegram: EDUFIRE.IR

HAZARDOUS MATERIALS—GENERAL PROVISIONS TABLE 5004.2.2 REQUIRED SECONDARY CONTAINMENT—HAZARDOUS MATERIAL SOLIDS AND LIQUIDS STORAGE MATERIAL INDOOR STORAGE OUTDOOR STORAGE Solids Liquids Solids Liquids Class II 1. Physical-hazard materials See Chapter 57 See Chapter 57 Combustible liquids Class IIIA Not Applicable See Chapter 57 Not Applicable See Chapter 57 Class IIIB See Chapter 57 See Chapter 57 Cryogenic fluids See Chapter 55 See Chapter 55 Explosives See Chapter 56 See Chapter 56 Class IA See Chapter 57 See Chapter 57 Flammable liquids Class IB Not Applicable See Chapter 57 Not Applicable See Chapter 57 Class IC See Chapter 57 See Chapter 57 Flammable solids Not Required Not Applicable Not Required Not Applicable Unclassified Detonable Organic peroxides Class I Required Required Not Required Not Required Class II Class III Class IV Class V Not Required Not Required Not Required Not Required Class 4 Oxidizers Class 3 Required Required Not Required Not Required Class 2 Class 1 Not Required Not Required Not Required Not Required Pyrophorics Not Required Required Not Required Required Class 4 Unstable (reactives) Class 3 Required Required Required Required Class 2 Class 1 Not Required Not Required Not Required Not Required Water reactives Class 3 Required Required Required Required Class 2 Class 1 Not Required Not Required Not Required Not Required 2. Health-hazard materials Corrosives Not Required Required Not Required Required Highly toxics Required Required Required Required Toxics 3. Sumps and collection systems. system design area or area of the room or area in which the storage is located, whichever is smaller. The 4. Drainage systems leading to an approved containment capacity shall be designed to contain the location. flow for a period of 20 minutes. 5. Other approved engineered systems. 5004.2.2.4 Outdoor design. Secondary containment for outdoor storage areas shall be designed to contain a 5004.2.2.2 Incompatible materials. Incompatible spill from the largest individual vessel. If the area is materials used in open systems shall be separated from open to rainfall, secondary containment shall be each other in the secondary containment system. designed to include the volume of a 24-hour rainfall as determined by a 25-year storm and provisions shall be 5004.2.2.3 Indoor design. Secondary containment for made to drain accumulations of groundwater and indoor storage areas shall be designed to contain a spill rainwater. from the largest vessel plus the design flow volume of fire protection water calculated to discharge from the fire-extinguishing system over the minimum required 50-20 2021 INTERNATIONAL FIRE CODE® EDUFIRE.IR Telegram: EDUFIRE.IR

HAZARDOUS MATERIALS—GENERAL PROVISIONS 5004.2.2.5 Monitoring. An approved monitoring 2. Storage areas for medical gases complying with method shall be provided to detect hazardous materials Chapter 53. in the secondary containment system. The monitoring method is allowed to be visual inspection of the 5004.3.1 System requirements. Exhaust ventilation primary or secondary containment, or other approved systems shall comply with all of the following: means. Where secondary containment is subject to the intrusion of water, a monitoring method for detecting 1. Installation shall be in accordance with the Inter- water shall be provided. Where monitoring devices are national Mechanical Code. provided, they shall be connected to approved visual or audible alarms. 2. Mechanical ventilation shall be at a rate of not less than 1 cubic foot per minute per square foot 5004.2.2.6 Drainage system design. Drainage [0.00508 m3/(s × m2)] of floor area over the stor- systems shall be in accordance with the International age area. Plumbing Code and all of the following: 3. Systems shall operate continuously unless alterna- 1. The slope of floors to drains in indoor loca- tive designs are approved. tions, or similar areas in outdoor locations shall be not less than 1 percent. 4. A manual shutoff control shall be provided outside of the room in a position adjacent to the 2. Drains from indoor storage areas shall be sized access door to the room or in an approved loca- to carry the volume of the fire protection water tion. The switch shall be a break-glass or other as determined by the design density discharged approved type and shall be labeled: “VENTILA- from the automatic fire-extinguishing system TION SYSTEM EMERGENCY SHUTOFF.” over the minimum required system design area or area of the room or area in which the storage 5. Exhaust ventilation shall be designed to consider is located, whichever is smaller. the density of the potential fumes or vapors released. For fumes or vapors that are heavier than 3. Drains from outdoor storage areas shall be air, exhaust shall be taken from a point within 12 sized to carry the volume of the fire flow and inches (305 mm) of the floor. For fumes or vapors the volume of a 24-hour rainfall as determined that are lighter than air, exhaust shall be taken by a 25-year storm. from a point within 12 inches (305 mm) of the highest point of the room. 4. Materials of construction for drainage systems shall be compatible with the materials stored. 6. The location of both the exhaust and inlet air openings shall be designed to provide air move- 5. Incompatible materials used in open systems ment across all portions of the floor or room to shall be separated from each other in the drain- prevent the accumulation of vapors. age system. 7. Exhaust air shall not be recirculated to occupied 6. Drains shall terminate in an approved location areas if the materials stored are capable of emit- away from buildings, valves, means of egress, ting hazardous vapors and contaminants have not fire access roadways, adjoining property and been removed. Air contaminated with explosive storm drains. or flammable vapors, fumes or dusts; flammable, highly toxic or toxic gases; or radioactive materi- 5004.2.3 Containment pallets. Where used as an alterna- als shall not be recirculated. tive to spill control and secondary containment for outdoor storage in accordance with the exception in 5004.4 Separation of incompatible hazardous materials. Section 5004.2, containment pallets shall comply with all Incompatible materials shall be separated in accordance with of the following: Section 5003.9.8. 1. A liquid-tight sump with access for visual inspec- 5004.5 Automatic sprinkler systems. Indoor storage areas tion shall be provided. and storage buildings shall be equipped throughout with an approved automatic sprinkler system in accordance with 2. The sump shall be designed to contain not less Section 903.3.1.1. The design of the sprinkler system shall than 66 gallons (250 L). be not less than that required for Ordinary Hazard Group 2 with a minimum design area of 3,000 square feet (279 m2). 3. Exposed surfaces shall be compatible with mate- Where the materials or storage arrangement are required by rial stored. other regulations to be provided with a higher level of sprin- kler system protection, the higher level of sprinkler system 4. Containment pallets shall be protected to prevent protection shall be provided. collection of rainwater within the sump. 5004.6 Explosion control. Indoor storage rooms, areas and 5004.3 Ventilation. Indoor storage areas and storage build- buildings shall be provided with explosion control in accor- ings shall be provided with mechanical exhaust ventilation dance with Section 911. or natural ventilation where natural ventilation can be shown to be acceptable for the materials as stored. 5004.7 Standby or emergency power. Where mechanical ventilation, treatment systems, temperature control, alarm, Exceptions: detection or other electrically operated systems are required, 1. Storage areas for flammable solids complying with Chapter 59. 2021 INTERNATIONAL FIRE CODE® 50-21 EDUFIRE.IR Telegram: EDUFIRE.IR

HAZARDOUS MATERIALS—GENERAL PROVISIONS such systems shall be provided with an emergency or combustible materials and vegetation for a minimum standby power in accordance with Section 1203. distance of 25 feet (7620 mm). For storage areas for highly toxic or toxic materials, see 5004.12 Noncombustible floor. Except for surfacing, floors Sections 6004.2.2.8 and 6004.3.4.2. of storage areas shall be of noncombustible construction. 5004.7.1 Exempt applications. Standby or emergency 5004.13 Weather protection. Where overhead noncombus- power is not required for mechanical ventilation systems tible construction is provided for sheltering outdoor for any of the following: hazardous material storage areas, such storage shall not be considered indoor storage where the area is constructed in 1. Storage of Class IB and IC flammable liquids and accordance with the requirements for weather protection as Class II and III combustible liquids in closed required by the International Building Code. containers not exceeding a capacity of 61/2 gallons (25 L). Exception: Storage of explosive materials shall be considered as indoor storage. 2. Storage of Class 1 and 2 oxidizers. 5004.14 Outdoor storage location. Outdoor storage areas 3. Storage of Class II, III, IV and V organic for hazardous materials shall be located as required by peroxides. Section 5003.12 except where material-specific require- ments, including requirements in referenced standards, are 4. Storage of asphyxiant, irritant and radioactive provided in other chapters of this code. gases. SECTION 5005 5004.7.2 Fail-safe engineered systems. Standby power USE, DISPENSING AND HANDLING for mechanical ventilation, treatment systems and temperature control systems shall not be required where 5005.1 General. Use, dispensing and handling of hazardous an approved fail-safe engineered system is installed. materials in amounts exceeding the maximum allowable quantity per control area set forth in Section 5003.1 shall be 5004.8 Limit controls. Limit controls shall be provided in in accordance with Sections 5001, 5003 and 5005. Use, accordance with Sections 5004.8.1 and 5004.8.2. dispensing and handling of hazardous materials in amounts not exceeding the maximum allowable quantity per control 5004.8.1 Temperature control. Materials that must be area set forth in Section 5003.1 shall be in accordance with kept at temperatures other than normal ambient tempera- Sections 5001 and 5003. tures to prevent a hazardous reaction shall be provided with an approved means to maintain the temperature 5005.1.1 Separation of incompatible materials. Separa- within a safe range. Redundant temperature control tion of incompatible materials shall be in accordance with equipment that will operate on failure of the primary Section 5003.9.8. temperature control system shall be provided. Where approved, alternative means that prevent a hazardous 5005.1.2 Noncombustible floor. Except for surfacing, reaction are allowed. floors of areas where liquid or solid hazardous materials are dispensed or used in open systems shall be of noncom- 5004.8.2 Pressure control. Stationary tanks and equip- bustible, liquid-tight construction. ment containing hazardous material liquids that can generate pressures exceeding design limits because of 5005.1.3 Spill control and secondary containment for exposure fires or internal reaction shall have some form hazardous material liquids. Where required by other of construction or other approved means that will relieve provisions of Section 5005, spill control and secondary excessive internal pressure. The means of pressure relief containment shall be provided for hazardous material shall vent to an approved location or to an exhaust scrub- liquids in accordance with Section 5004.2. ber or treatment system where required by Chapter 60. 5005.1.4 Limit controls. Limit controls shall be provided 5004.9 Emergency alarm. An approved manual emergency in accordance with Sections 5005.1.4.1 through alarm system shall be provided in buildings, rooms or areas 5005.1.4.4. used for storage of hazardous materials. Emergency alarm- initiating devices shall be installed outside of each interior 5005.1.4.1 High-liquid-level control. Open tanks in exit or exit access door of storage buildings, rooms or areas. which liquid hazardous materials are used shall be Activation of an emergency alarm-initiating device shall equipped with a liquid-level limit control or other sound a local alarm to alert occupants of an emergency situa- means to prevent overfilling of the tank. tion involving hazardous materials. 5005.1.4.2 Low-liquid-level control. Approved safe- 5004.10 Supervision and monitoring. Emergency alarm, guards shall be provided to prevent a low-liquid level detection and automatic fire-extinguishing systems required in a tank from creating a hazardous condition, includ- by Section 5004 shall be electrically supervised and moni- ing but not limited to, overheating of a tank or its tored by an approved supervising station or, where contents. approved, shall initiate an audible and visual signal at a constantly attended on-site location. 5005.1.4.3 Temperature control. Temperature control shall be provided in accordance with Section 5004.11 Clearance from combustibles. The area surround- 5004.8.1. ing an outdoor storage area or tank shall be kept clear of 50-22 2021 INTERNATIONAL FIRE CODE® EDUFIRE.IR Telegram: EDUFIRE.IR

HAZARDOUS MATERIALS—GENERAL PROVISIONS 5005.1.4.4 Pressure control. Pressure control shall be 5. Approved engineered liquid transfer systems. provided in accordance with Section 5004.8.2. Exceptions: 5005.1.5 Standby or emergency power. Where mechan- ical ventilation, treatment systems, temperature control, 1. Liquids having a hazard ranking of 4 where manual alarm, detection or other electrically operated dispensed from approved containers not systems are required by this code, such systems shall be exceeding 1.3 gallons (5 L). provided with emergency or standby power in accordance with Section 1203. 2. Liquids having a hazard ranking of 3 where dispensed from approved containers not 5005.1.5.1 Exempt applications. Standby power for exceeding 5.3 gallons (20 L). mechanical ventilation, treatment systems and temperature control systems shall not be required 5005.1.11 Design. Systems shall be suitable for the use where an approved fail-safe engineered system is intended and shall be designed by persons competent in installed. such design. Controls shall be designed to prevent materi- als from entering or leaving the process or reaction 5005.1.6 Supervision and monitoring. Manual alarm, system at other than the intended time, rate or path. detection and automatic fire-extinguishing systems Where failure of an automatic control could result in a required by other provisions of Section 5005 shall be dangerous condition or reaction, the automatic control electrically supervised and monitored by an approved shall be fail-safe. supervisory service or, where approved, shall initiate an audible and visual signal at a constantly attended on-site 5005.1.12 Emergency isolation. Where gases or liquids location. having a hazard ranking of Health Class 3 or 4, Flamma- bility Class 4 or Instability Class 3 or 4 in accordance 5005.1.7 Lighting. Adequate lighting by natural or artifi- with NFPA 704 are carried in pressurized piping above cial means shall be provided. 15 pounds per square inch gauge (psig) (103 kPa), an approved means of leak detection and emergency shutoff 5005.1.8 Fire protection systems. Indoor rooms or areas or excess flow control shall be provided. Where the in which hazardous materials are dispensed or used shall piping originates from within a hazardous material stor- be protected by an automatic sprinkler system or auto- age room or area, the excess flow control shall be located matic fire-extinguishing system in accordance with within the storage room or area. Where the piping origi- Chapter 9. Sprinkler system design shall be not less than nates from a bulk source, the excess flow control shall be that required for Ordinary Hazard, Group 2, with a mini- located as close to the bulk source as practical. mum design area of 3,000 square feet (279 m2). Where the materials or storage arrangement are required by other Exceptions: regulations to be provided with a higher level of sprinkler system protection, the higher level of sprinkler system 1. Piping for inlet connections designed to protection shall be provided. prevent backflow. 5005.1.9 Ventilation. Indoor dispensing and use areas 2. Piping for pressure relief devices. shall be provided with exhaust ventilation in accordance with Section 5004.3. 5005.2 Indoor dispensing and use. Indoor dispensing and use of hazardous materials shall be in buildings complying Exception: Ventilation is not required for dispensing with the International Building Code and in accordance with and use of flammable solids other than finely divided Section 5005.1 and Sections 5005.2.1 through 5005.2.2.4. particles. 5005.2.1 Open systems. Dispensing and use of hazardous 5005.1.10 Liquid transfer. Liquids having a hazard materials in open containers or systems shall be in accor- ranking of 3 or 4 in accordance with NFPA 704 shall be dance with Sections 5005.2.1.1 through 5005.2.1.4. transferred by one of the following methods: 5005.2.1.1 Ventilation. Where gases, liquids or solids 1. From safety cans complying with UL 30. having a hazard ranking of 3 or 4 in accordance with NFPA 704 are dispensed or used, mechanical exhaust 2. Through an approved closed piping system. ventilation shall be provided to capture gases, fumes, mists or vapors at the point of generation. 3. From containers or tanks by an approved pump taking suction through an opening in the top of the Exception: Gases, liquids or solids that can be container or tank. demonstrated not to create harmful gases, fumes, mists or vapors. 4. From containers or tanks by gravity through an approved self-closing or automatic-closing valve 5005.2.1.2 Explosion control. Explosion control shall where the container or tank and dispensing opera- be provided in accordance with Section 5004.6 where tions are provided with spill control and secondary an explosive environment can occur because of the containment in accordance with Section 5004.2. characteristics or nature of the hazardous materials Highly toxic liquids shall not be dispensed by dispensed or used, or as a result of the dispensing or gravity from tanks. use process. 2021 INTERNATIONAL FIRE CODE® 50-23 EDUFIRE.IR Telegram: EDUFIRE.IR

HAZARDOUS MATERIALS—GENERAL PROVISIONS 5005.2.1.3 Spill control for hazardous material vidual vessel or system or the capacity of multiple liquids. Buildings, rooms or areas where hazardous vessels or systems exceeds the following: material liquids are dispensed into vessels exceeding a 1.3-gallon (5 L) capacity or used in open systems 1. Individual vessel or system: greater than 1.3 exceeding a 5.3-gallon (20 L) capacity shall be gallons (5 L). provided with spill control in accordance with Section 5004.2.1. 2. Multiple vessels or systems: greater than 5.3 gallons (20 L). 5005.2.1.4 Secondary containment for hazardous material liquids. Where required by Table 5005.2.1.4, 5005.2.2 Closed systems. Use of hazardous materials in buildings, rooms or areas where hazardous material closed containers or systems shall be in accordance with liquids are dispensed or used in open systems shall be Sections 5005.2.2.1 through 5005.2.2.4. provided with secondary containment in accordance with Section 5004.2.2 where the capacity of an indi- 5005.2.2.1 Ventilation. Where closed systems are designed to be opened as part of normal operations, ventilation shall be provided in accordance with Section 5005.2.1.1. TABLE 5005.2.1.4 REQUIRED SECONDARY CONTAINMENT—HAZARDOUS MATERIAL LIQUIDS USE MATERIAL INDOOR LIQUIDS USE OUTDOOR LIQUIDS USE Combustible liquids 1. Physical-hazard materials Cryogenic fluids Explosives Class II See Chapter 57 See Chapter 57 Flammable liquids Flammable solids Class IIIA See Chapter 57 See Chapter 57 Organic peroxides Class IIIB See Chapter 57 See Chapter 57 See Chapter 55 See Chapter 55 Oxidizers See Chapter 56 See Chapter 56 Pyrophorics Unstable (reactives) Class IA See Chapter 57 See Chapter 57 Water reactives Class IB See Chapter 57 See Chapter 57 Corrosives Class IC See Chapter 57 See Chapter 57 Highly toxics Unclassified Detonable Not Applicable Not Applicable Toxics Required Required Class I Class II Required Required Class III Class IV Class V Not Required Not Required Class 4 Class 3 Required Required Class 2 Class 1 Required Required Class 4 Required Required Class 3 Class 2 Class 1 Not Required Required Class 3 Required Required Class 2 Class 1 Not Required Required 2. Health-hazard materials Required Required 50-24 2021 INTERNATIONAL FIRE CODE® EDUFIRE.IR Telegram: EDUFIRE.IR

HAZARDOUS MATERIALS—GENERAL PROVISIONS 5005.2.2.2 Explosion control. Explosion control shall 5005.2.1.4, outdoor areas where hazardous material be provided in accordance with Section 5004.6 where liquids are dispensed or used in open systems shall be an explosive environment exists because of the hazard- provided with secondary containment in accordance with ous materials dispensed or used, or as a result of the Section 5004.2.2 where the capacity of an individual dispensing or use process. vessel or system or the capacity of multiple vessels or systems exceeds the following: Exception: Where process vessels are designed to contain fully the worst-case explosion anticipated 1. Individual vessel or system: greater than 1.3 within the vessel under process conditions based on gallons (5 L). the most likely failure. 2. Multiple vessels or systems: greater than 5.3 5005.2.2.3 Spill control for hazardous material gallons (20 L). liquids. Buildings, rooms or areas where hazardous material liquids are used in individual vessels exceed- 5005.3.6 Spill control for hazardous material liquids ing a 55-gallon (208 L) capacity shall be provided with in closed systems. Outdoor areas where hazardous mate- spill control in accordance with Section 5004.2.1. rial liquids are used in closed systems exceeding 55 gallons (208 L) shall be provided with spill control in 5005.2.2.4 Secondary containment for hazardous accordance with Section 5004.2.1. material liquids. Where required by Table 5005.2.1.4, buildings, rooms or areas where hazardous material 5005.3.7 Secondary containment for hazardous mate- liquids are used in vessels or systems shall be provided rial liquids in closed systems. Where required by Table with secondary containment in accordance with 5005.2.1.4, outdoor areas where hazardous material Section 5004.2.2 where the capacity of an individual liquids are dispensed or used in closed systems shall be vessel or system or the capacity of multiple vessels or provided with secondary containment in accordance with systems exceeds the following: Section 5004.2.2 where the capacity of an individual vessel or system or the capacity of multiple vessels or 1. Individual vessel or system: greater than 55 systems exceeds the following: gallons (208 L). 1. Individual vessel or system: greater than 55 2. Multiple vessels or systems: greater than 1,000 gallons (208 L). gallons (3785 L). 2. Multiple vessels or systems: greater than 1,000 5005.3 Outdoor dispensing and use. Dispensing and use of gallons (3785 L). hazardous materials outdoors shall be in accordance with Sections 5005.3.1 through 5005.3.9. 5005.3.8 Clearance from combustibles. The area surrounding an outdoor dispensing or use area shall be 5005.3.1 Quantities exceeding the maximum allowable kept clear of combustible materials and vegetation for a quantity per control area. Outdoor dispensing or use of minimum distance of 30 feet (9144 mm). hazardous materials, in either closed or open containers or systems, in amounts exceeding the maximum allowable 5005.3.9 Weather protection. Where overhead noncom- quantity per control area indicated in Tables 5003.1.1(3) bustible construction is provided for sheltering outdoor and 5003.1.1(4) shall be in accordance with Sections hazardous material use areas, such use shall not be 5001, 5003, 5005.1 and 5005.3. considered indoor use where the area is constructed in accordance with the requirements for weather protection 5005.3.2 Quantities not exceeding the maximum as required in the International Building Code. allowable quantity per control area. Outdoor dispens- ing or use of hazardous materials, in either closed or open Exception: Use of explosive materials shall be consid- containers or systems, in amounts not exceeding the ered as indoor use. maximum allowable quantity per control area indicated in Tables 5003.1.1(3) and 5003.1.1(4) shall be in accor- 5005.4 Handling. Handling of hazardous materials shall be dance with Sections 5001 and 5003. in accordance with Sections 5005.4.1 through 5005.4.4. 5005.3.3 Outdoor location. Outdoor dispensing and use 5005.4.1 Quantities exceeding the maximum allowable areas for hazardous materials shall be located as required quantity per control area. Handling of hazardous mate- by Section 5003.12 except where material-specific rials in indoor and outdoor locations in amounts requirements, including requirements in referenced stan- exceeding the maximum allowable quantity per control dards, are provided in other chapters of this code. area indicated in Tables 5003.1.1(1) through 5003.1.1(4) shall be in accordance with Sections 5001, 5003, 5005.1 5005.3.4 Spill control for hazardous material liquids and 5005.4. in open systems. Outdoor areas where hazardous mate- rial liquids are dispensed in vessels exceeding a 1.3- 5005.4.2 Quantities not exceeding the maximum gallon (5 L) capacity or used in open systems exceeding a allowable quantity per control area. Handling of 5.3-gallon (20 L) capacity shall be provided with spill hazardous materials in indoor locations in amounts not control in accordance with Section 5004.2.1. exceeding the maximum allowable quantity per control area indicated in Tables 5003.1.1(1) and 5003.1.1(2) 5005.3.5 Secondary containment for hazardous mate- shall be in accordance with Sections 5001, 5003 and rial liquids in open systems. Where required by Table 5005.1. Handling of hazardous materials in outdoor loca- tions in amounts not exceeding the maximum allowable 2021 INTERNATIONAL FIRE CODE® 50-25 EDUFIRE.IR Telegram: EDUFIRE.IR

HAZARDOUS MATERIALS—GENERAL PROVISIONS quantity per control area indicated in Tables 5003.1.1(3) and 5003.1.1(4) shall be in accordance with Sections 5001 and 5003. 5005.4.3 Outdoor location. Outdoor handling areas for hazardous materials shall be located as required by Section 5003.12 except where material-specific require- ments, including requirements in referenced standards, are provided in other chapters of this code. 5005.4.4 Dispensing, use and handling. Where hazard- ous materials having a hazard ranking of 3 or 4 in accordance with NFPA 704 are transported through corri- dors, interior exit stairways or ramps or exit passageways, there shall be an emergency telephone system, a local manual alarm station or an approved alarm-initiating device at not more than 150-foot (45 720 mm) intervals and at each exit and exit access doorway throughout the transport route. The signal shall be relayed to an approved central, proprietary or remote station service or constantly attended on-site location and shall initiate a local audible alarm. 50-26 2021 INTERNATIONAL FIRE CODE® EDUFIRE.IR Telegram: EDUFIRE.IR

CHAPTER 51 AEROSOLS User note: About this chapter: Chapter 51 provides requirements for the prevention, control and extinguishment of fires and explosions in facilities where retail aerosol products are displayed or stored. It is concerned with both life safety and property protection from a fire; however, historically, aerosol product fires have caused property loss more frequently than loss of life. Requirements for storing aerosol products are dependent on the level of aerosol product, level of sprinkler protection, type of storage condition and quantity of aerosol products. SECTION 5101 fied in accordance with this section shall be classified as GENERAL Level 3. 5101.1 Scope. The provisions of this chapter, the Interna- TABLE 5103.1 tional Building Code and NFPA 30B shall apply to the CLASSIFICATION OF AEROSOL PRODUCTS manufacturing, storage and display of aerosol products, aerosol cooking spray products and plastic aerosol 3 prod- CHEMICAL HEAT OF COMBUSTION AEROSOL ucts. Manufacturing of aerosol products, aerosol cooking CLASSIFICATION spray products and plastic aerosol 3 products using hazard- Greater than Less than or equal to ous materials shall also comply with Chapter 50. (Btu/lb) (Btu/lb) 5101.2 Permit required. Permits shall be required as set forth in Section 105.5. 0 8,600 1 5101.3 Safety Data Sheets. Safety Data Sheet (SDS) infor- mation for aerosol products displayed shall be kept on the 8,600 13,000 2 premises at an approved location. 5101.4 Containers. Metal aerosol containers shall be limited 13,000 — 3 to a maximum size of 33.8 fluid ounces (1000 ml). Plastic aerosol containers shall be limited to a maximum of 4 fluid For SI: 1 British thermal unit per pound = 0.002326 kJ/g. ounces (118 ml) except as provided in Sections 5104.1.1 and 5104.1.2. Glass aerosol containers shall be limited to a maxi- 5103.2 Identification. Cartons or outer packaging shall be mum of 4 fluid ounces (118 ml). identified on not fewer than one exterior side with the classi- fication level of the aerosol products contained within the SECTION 5102 carton. DEFINITIONS 5102.1 Definitions. The following terms are defined in 5103.2.1 Aerosol products. Cartons or outer packaging Chapter 2: containing aerosol products in metal containers or glass AEROSOL CONTAINER. and plastic containers 4 fluid ounces. (118 ml) or less AEROSOL PRODUCT. shall be clearly marked as follows: Level 1 aerosol products. Level 2 aerosol products. LEVEL ________ AEROSOLS Level 3 aerosol products. AEROSOL PRODUCT WAREHOUSE. 5103.2.2 Aerosol cooking spray products. Cartons or PROPELLANT. outer packaging containing aerosol cooking spray prod- RETAIL DISPLAY AREA. ucts in metal containers shall be clearly marked as follows: SECTION 5103 CLASSIFICATION OF AEROSOL PRODUCTS AEROSOL COOKING SPRAY 5103.1 Classification levels. Aerosol products shall be clas- sified as Level 1, 2 or 3 in accordance with Table 5103.1 and 5103.2.3 Plastic aerosol products. Cartons or outer NFPA 30B. Aerosol products in cartons that are not identi- packaging containing aerosol products in plastic contain- ers greater than 4 fluid ounces (118 ml) shall be clearly marked as follows: PLASTIC AEROSOL 1, 3 or X SECTION 5104 INSIDE STORAGE OF AEROSOL PRODUCTS 5104.1 General. The inside storage of Level 2 and 3 aerosol products shall comply with Sections 5104.2 through 5104.8 and NFPA 30B. Level 1 aerosol products and those aerosol products covered by Section 5104.1.1 shall be considered to be equivalent to a Class III commodity and shall comply with the requirements for palletized or rack storage in NFPA 13. 2021 INTERNATIONAL FIRE CODE® 51-1 EDUFIRE.IR Telegram: EDUFIRE.IR

AEROSOLS 5104.1.1 Plastic aerosol products. Aerosol products in 2. A net weight of 500 pounds (227 kg) of Level 3 aero- plastic containers larger than 4 fluid ounces (118 ml), but sol products. not to exceed 33.8 fluid ounces (1000 ml), shall be allowed only where in accordance with this section. The 3. A combined net weight of 1,000 pounds (454 kg) of commodity classification shall be Class III commodities, Level 2 and 3 aerosol products. as defined in NFPA 13 where any of the following condi- tions are met: The maximum quantity shall be increased 100 percent where the excess quantity is stored in storage cabinets in 1. Base product does not have a fire point where accordance with Section 5704.3.2. tested in accordance with ASTM D92, and nonflammable propellant. 5104.2.1 Excess storage. Storage of quantities exceeding the maximum quantities indicated in Section 5104.2 shall 2. Base product does not sustain combustion as be stored in separate inside flammable liquid storage tested in accordance with DOTn 49 CFR Part 173, rooms in accordance with Section 5104.5. Appendix H, and nonflammable propellant. 5104.2.2 Aerosol cooking spray products. Storage of 3. Base product contains up to 20 percent by volume aerosol cooking spray products in Group A, B, E, F, I and (15.8 percent by weight) of ethanol, isopropyl R occupancies shall not be more than 1,000 pounds (454 alcohol or a combination thereof in an aqueous kg) net weight. mix, and nonflammable propellant. 5104.3 Storage in general purpose warehouses. Aerosol 4. Base product contains 4 percent by weight or less product storage in general purpose warehouses utilized only of an emulsified flammable liquefied gas propel- for warehousing-type operations involving mixed commodi- lant within an aqueous base. The propellant shall ties shall comply with Section 5104.3.1, 5104.3.2. or remain emulsified for the life of the product. 5104.3.3. Where such propellant is not permanently emulsi- fied, the propellant shall be nonflammable. 5104.3.1 Nonsegregated storage. Storage consisting of solid pile, palletized or rack storage of Level 2 and 3 aero- 5104.1.2 Plastic aerosol 3 products. Plastic aerosol 3 sol products not segregated into areas utilized exclusively products shall be defined as those that meet one of the for the storage of aerosol products shall comply with following criteria: Table 5104.3.1. 1. Base product does not have a fire point where TABLE 5104.3.1 tested in accordance with ASTM D92, and there is NONSEGREGATED STORAGE OF LEVEL 2 AND 3 AEROSOL not more than 10 percent by weight flammable propellant. PRODUCTS IN GENERAL PURPOSE WAREHOUSESb 2. Base product does not sustain combustion as MAXIMUM NET WEIGHT PER FLOOR (pounds)b tested in accordance with DOTn 49 CFR 173, Appendix H, and there is not more than 10 percent AEROSOL Palletized or solid-pile Rack storage by weight flammable propellant. LEVEL storage 3. Base product contains 50 percent by volume or Unprotected Protecteda Unprotected Protecteda less of flammable or combustible water-miscible alcohols in an aqueous mix, and there is not more 2 2,500 12,000 2,500 24,000 than 10 percent by weight of flammable propellant. 3 1,000 12,000 1,000 24,000 5104.1.3 Plastic aerosol X products. Plastic aerosol X Combination 2,500 12,000 2,500 24,000 products are those products, in containers larger than 4 2 and 3 fluid ounces (118 ml), that do not meet the criteria provided in Section 5104.1.1 or 5104.1.2. For SI: 1 foot = 304.8 mm, 1 pound = 0.454 kg, 1 square foot = 0.0929 m2. 5104.1.3.1 Storage, use or handling. The storage, use a. Approved automatic sprinkler system protection and storage arrange- or handling of plastic aerosol X products shall be ments shall comply with NFPA 30B. Sprinkler system protection shall prohibited. extend 20 feet beyond the storage area containing the aerosol products. 5104.2 Storage in Groups A, B, E, F, I and R. Storage of b. Storage quantities indicated are the maximum permitted in any 50,000- Level 2 and 3 aerosol products in occupancies in Groups A, square-foot area. B, E, F, I and R shall be limited to the following maximum quantities: 5104.3.2 Segregated storage. Storage of Level 2 and 3 aerosol products segregated into areas utilized exclu- 1. A net weight of 1,000 pounds (454 kg) of Level 2 sively for the storage of aerosol products shall comply aerosol products. with Table 5104.3.2 and Sections 5104.3.2.1 and 5104.3.2.2. 51-2 2021 INTERNATIONAL FIRE CODE® EDUFIRE.IR Telegram: EDUFIRE.IR

AEROSOLS TABLE 5104.3.2 5104.3.2.2 Aisles. The minimum aisle requirements SEGREGATED STORAGE OF LEVEL 2 AND 3 AEROSOL for segregated storage in general purpose warehouses PRODUCTS AND PLASTIC AEROSOL 3 PRODUCTS IN shall comply with Table 5104.3.2.2. GENERAL PURPOSE WAREHOUSES MAXIMUM SEGRE- TABLE 5104.3.2.2 GATED STORAGE AREAa SEGREGATED STORAGE AISLE WIDTHS AND DISTANCE TO STORAGE SEPARATION Percentage Area SPRINKLER AISLES IN GENERAL PURPOSE WAREHOUSES of building limitation REQUIREMENTS Separation areae, f area MAXIMUM (percent) (square feet) DISTANCE FROM MINIMUM AISLE WIDTH 15 20,000 Notes b, c STORAGE CONDITION STORAGE TO AISLE (feet) (feet) Chain-link fence enclosured 20 20,000 Notes b, c Solid pile or 4 feet between piles 25 palletizeda 1-hour fire-resistance- rated interior walls 20 30,000 Note b Racks with ESFR 4 feet between racks and sprinklersa adjacent Level 2 and 3 2-hour fire-resistance- aerosol product storage 25 rated interior walls 25 40,000 Note b 3-hour fire-resistance- 30 50,000 Note b Racks without ESFR 8 feet between racks and 25 rated interior walls sprinklersa adjacent Level 2 and 3 aerosol product storage For SI: 1 foot = 304.8 mm, 1 square foot = 0.0929 m2. For SI: 1 foot = 304.8 mm. a. The maximum segregated storage area shall be limited to the smaller of a. Sprinklers shall comply with NFPA 30B. the two areas resulting from the percentage of building area limitation 5104.3.3 Aerosol cooking spray products. Solid pile, and the area limitation. palletized or rack storage of aerosol cooking spray prod- b. Automatic sprinkler system protection in aerosol product storage areas ucts in a general purpose warehouse shall not be more shall comply with NFPA 30B and be approved. Building areas not than 2,500 pounds (1135 kg) net weight, unless protected containing aerosol product storage shall be equipped throughout with an in accordance with NFPA 30B. approved automatic sprinkler system in accordance with Section 903.3.1.1. 5104.4 Storage in aerosol product warehouses. The total c. Automatic sprinkler system protection in aerosol product storage areas quantity of Level 2 and 3 aerosol products in a warehouse shall comply with NFPA 30B and be approved. Sprinkler system protec- utilized for the storage, shipping and receiving of aerosol tion shall extend a minimum 20 feet beyond the aerosol storage area. products shall not be restricted in structures complying with d. Chain-link fence enclosures shall comply with Section 5104.3.2.1. Sections 5104.4.1 through 5104.4.4. e. A separation area shall be defined as an area extending outward from the periphery of the segregated aerosol product storage area as follows: 5104.4.1 Automatic sprinkler system. Aerosol product warehouses shall be protected by an approved wet-pipe 1. The limits of the aerosol product storage shall be clearly marked automatic sprinkler system in accordance with NFPA on the floor. 30B. Sprinkler protection shall be designed based on the highest classification level of aerosol product present. 2. The separation distance shall be not less than 25 feet and main- tained clear of all materials with a commodity classification 5104.4.2 Pile and palletized storage aisles. Solid pile greater than Class III in accordance with Section 903.3.1.1. and palletized storage shall be arranged so the maximum travel distance to an aisle is 25 feet (7620 mm). Aisles f. Separation areas shall only be permitted where approved. shall have a minimum width of 4 feet (1219 mm). 5104.3.2.1 Chain-link fence enclosures. Chain-link 5104.4.3 Rack storage aisles. Rack storage shall be fence enclosures required by Table 5104.3.2 shall arranged with a minimum aisle width of 8 feet (2438 mm) comply with the following: between rows of racks and 8 feet (2438 mm) between racks and adjacent solid pile or palletized storage. Where 1. The fence shall be not less than No. 9 gage early suppression fast-response (ESFR) sprinklers steel wire, woven into a maximum 2-inch (51 provide automatic sprinkler protection, the minimum mm) diamond mesh. aisle width shall be 4 feet (1219 mm). 2. The fence shall be installed from the floor to 5104.4.4 Combustible commodities. Combustible the underside of the roof or ceiling above. commodities other than flammable and combustible liquids shall be permitted to be stored in an aerosol prod- 3. Class IV and high-hazard commodities shall be uct warehouse. stored outside of the aerosol storage area and not less than 8 feet (2438 mm) from the fence. Exception: Flammable and combustible liquids in 1-quart (946 ml) metal containers and smaller shall 4. Access openings in the fence shall be provided be permitted to be stored in an aerosol product with either self- or automatic-closing devices warehouse. or a labyrinth opening arrangement preventing aerosol containers from rocketing through the 5104.5 Storage in inside flammable liquid storage rooms. access openings. Inside flammable liquid storage rooms shall comply with 5. Not less than two means of egress shall be provided from the fenced enclosure. 2021 INTERNATIONAL FIRE CODE® 51-3 EDUFIRE.IR Telegram: EDUFIRE.IR

AEROSOLS Section 5704.3.7. The maximum quantities of aerosol prod- TABLE 5104.7 ucts shall comply with Section 5104.5.1 or 5104.5.2. MAXIMUM QUANTITIES OF LEVEL 2 AND 3 AEROSOL PROD- UCTS, AEROSOL COOKING SPRAY PRODUCTS AND PLASTIC 5104.5.1 Storage rooms of 500 square feet or less. The storage of aerosol products in flammable liquid storage AEROSOL 3 PRODUCTS IN RETAIL STORAGE AREAS rooms less than or equal to 500 square feet (46 m2) in area shall not exceed the following quantities: MAXIMUM NET WEIGHT PER FLOOR (pounds) 1. A net weight of 1,000 pounds (454 kg) of Level 2 Nonsegregated Segregated storage aerosol products. storagea, b Floor Storage Separated from 2. A net weight of 500 pounds (227 kg) of Level 3 Not Permitted cabinetsb retail areac aerosol products. Basement Not Permitted Not Permitted 3. A combined net weight of 1,000 pounds (454 kg) of Level 2 and 3 aerosol products. Ground 2,500 5,000 Note d 5104.5.2 Storage rooms greater than 500 square feet. Upper 500 1,000 Note d The storage of aerosol products in flammable liquid stor- age rooms greater than 500 square feet (46 m2) in area For SI: 1 pound = 0.454 kg, 1 square foot = 0.0929 m2. shall not exceed the following quantities: a. The total aggregate quantity on display and in storage shall not exceed 1. A net weight of 2,500 pounds (1135 kg) of Level the maximum retail display quantity indicated in Section 5106.3. 2 aerosol products. b. Storage quantities indicated are the maximum permitted in any 50,000- 2. A net weight of 1,000 pounds (454 kg) of Level 3 square-foot area. aerosol products. c. The storage area shall be separated from the retail area with a 1-hour fire- 3. A combined net weight of 2,500 pounds (1135 kg) resistance-rated assembly. of Level 2 and 3 aerosol products. d. See Table 5104.3.2. The maximum aggregate storage quantity of Level 2 5104.8 Storage of aerosol cooking spray products. Aero- and 3 aerosol products permitted in separate inside stor- sol cooking spray products shall be permitted to be stored in age rooms protected by an approved automatic sprinkler a general purpose warehouse. system in accordance with NFPA 30B shall be 5,000 pounds (2270 kg). 5104.8.1 Mixed storage. Where aerosol cooking spray products are mixed with other higher-hazard aerosol 5104.6 Storage in liquid warehouses. The storage of Level products, the provided isolation, storage height restric- 2 and 3 aerosol products in liquid warehouses shall comply tions and protection shall be based on the highest-hazard with NFPA 30B. The storage shall be located within segre- aerosol product present. gated storage areas in accordance with Section 5104.3.2 and Sections 5104.6.1 through 5104.6.3. 5104.8.2 Storage conditions. The storage and handling of aerosol cooking spray products shall comply with this 5104.6.1 Containment. Spill control or drainage shall be chapter and NFPA 30B. provided to prevent the flow of liquid to within 8 feet (2438 mm) of the segregated storage area. SECTION 5105 5104.6.2 Sprinkler design. Sprinkler protection shall be OUTSIDE STORAGE designed based on the highest level of aerosol product present. 5105.1 General. The outside storage of Level 2 and 3 aero- sol products and plastic aerosol 3 products, including storage 5104.6.3 Opening protection into segregated storage in temporary storage trailers, shall be separated from expo- areas. Fire doors or gates opening into the segregated sures in accordance with Table 5105.1. storage area shall either be self-closing or provided with automatic-closing devices activated by sprinkler water TABLE 5105.1 flow or an approved fire detection system. DISTANCE TO EXPOSURES FOR OUTSIDE STORAGE OF 5104.7 Storage in Group M occupancies. Storage of Level LEVEL 2 AND 3 AEROSOL PRODUCTS AND PLASTIC 2 and 3 aerosol products, aerosol cooking spray products and AEROSOL 3 PRODUCTS plastic aerosol 3 products in occupancies in Group M shall comply with Table 5104.7. Retail display shall comply with EXPOSURE MINIMUM DISTANCE FROM Section 5106. AEROSOL STORAGE (feet)a Buildings 50 Exit discharge to a public way 50 Lot lines 20 Other outside storage 50 Public alleys, public ways, public 20 streets For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm. a. The minimum separation distance indicated is not required where exte- rior walls having a 2-hour fire-resistance rating without penetrations separate the storage from the exposure. The walls shall extend not less than 30 inches above and to the sides of Level 2 and 3 aerosol products and plastic aerosol 3 products. 51-4 2021 INTERNATIONAL FIRE CODE® EDUFIRE.IR Telegram: EDUFIRE.IR

AEROSOLS SECTION 5106 2. Where the display area is protected in accor- dance with Tables 6.4.2.7(a) through 6.4.2.7(l) RETAIL DISPLAY of NFPA 30B, storage of aerosol products in combustible cartons is allowed. 5106.1 General. This section shall apply to the retail display of 500 pounds (227 kg) or more of Level 2 and 3 aerosol 5106.2.5 Retail display automatic sprinkler system. products, aerosol cooking spray products and plastic aerosol Where an automatic sprinkler system is required for the 3 products. protected retail display of aerosol products, the wet-pipe automatic sprinkler system shall be in accordance with 5106.2 Aerosol display and normal merchandising not Section 903.3.1.1. The minimum system design shall be exceeding 8 feet in height. Aerosol display and normal for an Ordinary Hazard Group 2 occupancy. The system merchandising not exceeding 8 feet (2438 mm) in height shall be provided throughout the retail display area. shall be in accordance with Sections 5106.2.1 through 5106.2.5. 5106.3 Aerosol product display and normal merchandis- ing exceeding 8 feet in height. Aerosol product display and 5106.2.1 Maximum quantities in retail display areas. merchandising exceeding 8 feet (2438 mm) in height shall be Aerosol products, aerosol cooking spray products and in accordance with Sections 5106.3.1 through 5106.3.3. plastic aerosol 3 products in retail display areas shall not exceed quantities needed for display and normal 5106.3.1 Maximum quantities in retail display areas. merchandising and shall not exceed the quantities in Aerosol products in retail display areas shall not exceed Table 5106.2.1. quantities needed for display and normal merchandising and shall not exceed the quantities in Table 5106.2.1, with TABLE 5106.2.1 fire protection in accordance with Section 5106.3.2. MAXIMUM QUANTITIES OF LEVEL 2 AND 3 AEROSOL PRODUCTS, AEROSOL COOKING SPRAY PRODUCTS AND 5106.3.2 Automatic sprinkler protection. Aerosol prod- PLASTIC AEROSOL 3 PRODUCTS IN RETAIL DISPLAY AREAS uct and plastic aerosol 3 product display and merchandising areas shall be protected by an automatic MAXIMUM NET WEIGHT PER FLOOR (pounds)b sprinkler system based on the requirements set forth in Tables 6.4.2.7(a) through 6.4.2.7(l) of NFPA 30B and the Floor Unprotecteda Protected in Protected in following: accordance with accordance with Basement Not Allowed Section 5106.2a, c Section 5106.3c 1. Protection shall be based on the highest level of aerosol product in the array and the packaging 500 500 method of the storage located more than 6 feet (1829 mm) above the finished floor. Ground 2,500 10,000 10,000 2. Where using the cartoned aerosol products tables Upper 500 2,000 Not Allowed of NFPA 30B, uncartoned or display-cut Level 2 and 3 aerosol products and plastic aerosol 3 prod- For SI: 1 pound = 0.454 kg, 1 square foot = 0.0929 m2. ucts shall not be permitted more than 6 feet (1829 a. The total quantity shall not exceed 1,000 pounds net weight in any one mm) above the finished floor. 100-square-foot retail display area. 3. The design area for Level 2 and 3 aerosol products b. Per 25,000-square-foot retail display area. and plastic aerosol 3 products shall extend not less than 20 feet (6096 mm) beyond the Level 2 and 3 c. Minimum Ordinary Hazard Group 2 wet-pipe automatic sprinkler system aerosol product and plastic aerosol 3 product throughout the retail sales occupancy. display and merchandising areas. 5106.2.2 Aerosol cooking spray product and plastic 4. Where ordinary and high-temperature ceiling aerosol 3 product storage and fire protection. The stor- sprinkler systems are adjacent to each other, age and handling of aerosol cooking spray products and noncombustible draft curtains shall be installed at plastic aerosol 3 products shall comply with this chapter the interface. and NFPA 30B. 5106.3.3 Separation of Level 2 and 3 aerosol product 5106.2.3 Display of aerosol products. Level 2 and 3 and plastic aerosol 3 product areas. Separation of Level aerosol products shall not be stacked more than 6 feet 2 and 3 aerosol product areas or plastic aerosol 3 product (1829 mm) high from the base of the aerosol product areas shall comply with the following: array to the top of the aerosol product array unless the aerosol products are placed on fixed shelving or other- 1. Level 2 and 3 aerosol product or plastic aerosol 3 wise secured in an approved manner. Where storage or product display and merchandising areas shall be retail display is on shelves, the height of such storage or separated from each other by not less than 25 feet retail display to the top of aerosol products shall not (7620 mm). See Table 5106.2.1. exceed 8 feet (2438 mm). 2. Level 2 and 3 aerosol product or plastic aerosol 3 5106.2.4 Combustible cartons. Aerosol products located product display and merchandising areas shall be in retail display areas shall be removed from combustible separated from flammable and combustible liquids cartons. Exceptions: 1. Display areas that use a portion of combustible cartons that consist of only the bottom panel and not more than 2 inches (51 mm) of the side panel are allowed. 2021 INTERNATIONAL FIRE CODE® 51-5 EDUFIRE.IR Telegram: EDUFIRE.IR

AEROSOLS storage and display areas by one or a combination between rows of racks and adjacent solid-piled or pallet- of the following: ized merchandise. 2.1. Segregating areas from each other by 5106.5.5 Flue spaces. Flue spaces in racks shall comply horizontal distance of not less than 25 with the following: feet (7620 mm). 1. Transverse flue spaces—Nominal 3-inch (76 mm) 2.2. Isolating areas from each other by a transverse flue spaces shall be maintained noncombustible partition extending not between merchandise and rack uprights. less than 18 inches (457 mm) above the merchandise. 2. Longitudinal flue spaces—Nominal 6-inch (152 mm) longitudinal flue spaces shall be maintained. 2.3. In accordance with Section 5106.5. 5106.5.6 Horizontal barriers. Horizontal barriers 3. Where Item 2.2 is used to separate Level 2 or 3 constructed of minimum 3/8-inch-thick (10 mm) plywood aerosol products or plastic aerosol 3 products from or minimum 0.034-inch (0.086 mm) (No. 22 gage) sheet flammable or combustible liquids, and the aerosol metal shall be provided and located in accordance with products are located within 25 feet (7620 mm) of Table 7.5.1 and Figure 7.5.1 of NFPA 30B where in-rack flammable or combustible liquids, the area below sprinklers are installed. the noncombustible partition shall be liquid tight at the floor to prevent spilled liquids from flowing 5106.5.7 Class I, II, III, IV and plastic commodities. beneath the aerosol products. Class I, II, III, IV and plastic commodities located adja- cent to Level 2 and 3 aerosol products and plastic aerosol 5106.4 Maximum quantities in storage areas. Aerosol 3 products shall be protected in accordance with NFPA products in storage areas adjacent to retail display areas shall 13. not exceed the quantities in Table 5106.4. 5106.5.8 Flammable and combustible liquids. Class I, 5106.5 Special protection design for Level 2 and 3 aerosol II, III A and III B liquids shall be allowed to be located products adjacent to flammable and combustible liquids adjacent to Level 2 and 3 aerosol products where both of in double-row racks. The display and merchandising of the following conditions are met: Level 2 and 3 aerosol products adjacent to flammable and combustible liquids in double-row racks shall be in accor- 1. Class I, II, IIIA and IIIB liquid containers: dance with Section 5106.3.3 or Sections 5106.5.1 through Containers for Class I, II, IIIA and IIIB liquids 5106.5.8. shall be limited to 1.06-gallon (4 L) metal-reliev- ing and nonrelieving style containers and 5.3- 5106.5.1 Fire protection. Fire protection for the display gallon (20 L) metal-relieving style containers. and merchandising of Level 2 and 3 aerosols in double- row racks shall be in accordance with Table 7.5.1 and 2. Fire protection for Class I, II, IIIA and IIIB Figure 7.5.1 of NFPA 30B. Liquids: Automatic sprinkler protection for Class I, II, IIIA and IIIB liquids shall be in accordance 5106.5.2 Cartoned aerosol products. Level 2 and 3 with Chapter 57. aerosol products displayed or merchandised more than 8 feet (2438 mm) above the finished floor shall be in SECTION 5107 cartons. MANUFACTURING FACILITIES 5106.5.3 Shelving. Shelving in racks shall be limited to 5107.1 General. Manufacturing facilities shall be in accor- wire mesh shelving having uniform openings not more dance with NFPA 30B. than 6 inches (152 mm) apart, with the openings compris- ing not less than 50 percent of the overall shelf area. 5106.5.4 Aisles. Racks shall be arranged so that aisles not less than 71/2 feet (2286 mm) wide are maintained TABLE 5106.4 MAXIMUM STORAGE QUANTITIES FOR STORAGE AREAS ADJACENT TO RETAIL DISPLAY OF LEVEL 2 AND 3 AEROSOL PRODUCTS AND PLASTIC AEROSOL 3 PRODUCTS MAXIMUM NET WEIGHT PER FLOOR (pounds) Floor Unseparateda, b Storage cabinetsb Separated 1-hour occupancy separation Basement Not Allowed Not Allowed Ground Not Allowed Upper 2,500 5,000 In accordance with Sections 6.4.4.3 and 6.4.4.4 of NFPA 30B 500 1,000 In accordance with Sections 6.4.4.3 and 6.4.4.4 of NFPA 30B For SI: 1 pound = 0.454 kg, 1 square foot = 0.0929 m2. a. The aggregate quantity in storage and retail display shall not exceed the quantity limits for retail display. b. In any 50,000-square-foot area. 51-6 2021 INTERNATIONAL FIRE CODE® EDUFIRE.IR Telegram: EDUFIRE.IR

CHAPTER 52 RESERVED 2021 INTERNATIONAL FIRE CODE® 52-1 EDUFIRE.IR Telegram: EDUFIRE.IR

52-2 2021 INTERNATIONAL FIRE CODE® EDUFIRE.IR Telegram: EDUFIRE.IR

CHAPTER 53 COMPRESSED GASES User note: About this chapter: Chapter 53 regulates the storage, use and handling of all flammable and nonflammable compressed gases, such as those that are used in medical facilities, air separation plants, industrial plants, agricultural equipment and similar occupancies. Also, this chapter regulates inert gases, such as CO2 used for enrichment and beverage dispensing, that although inert are considered asphyxiants and in larger amounts pose a life safety hazard. Standards for the design, construction and marking of compressed gas cylinders and pres- sure vessels are referenced. Compressed gases used in welding and cutting, cryogenic liquids and liquefied petroleum gases are also regulated under Chapters 35, 55 and 61, respectively. Compressed gases that are classified as hazardous materials are also regulated in Chapter 50, which includes general requirements. SECTION 5301 COMPRESSED GAS CONTAINER. GENERAL COMPRESSED GAS SYSTEM. 5301.1 Scope. Storage, use and handling of compressed gases in compressed gas containers, cylinders, tanks and NESTING. systems shall comply with this chapter and NFPA 55, including those gases regulated elsewhere in this code. TUBE TRAILER. Partially full compressed gas containers, cylinders or tanks containing residual gases shall be considered as full for the SECTION 5303 purposes of the controls required. GENERAL REQUIREMENTS Liquefied natural gas for use as a vehicular fuel shall also 5303.1 Containers, cylinders and tanks. Compressed gas comply with NFPA 52 and NFPA 59A. containers, cylinders and tanks shall comply with this section. Compressed gas containers, cylinders or tanks that Compressed gases classified as hazardous materials shall are not designed for refillable use shall not be refilled after also comply with Chapter 50 for general requirements and use of the original contents. chapters addressing specific hazards, including Chapters 58 (Flammable Gases and Flammable Cryogenic Fluids), 60 5303.2 Design and construction. Compressed gas contain- (Highly Toxic and Toxic Materials), 63 (Oxidizers, Oxidiz- ers, cylinders and tanks shall be designed, fabricated, tested, ing Gases and Oxidizing Cryogenic Fluids) and 64 marked with the specifications of manufacture and main- (Pyrophoric Materials). tained in accordance with the regulations of DOTn 49 CFR Parts 100–185 or the ASME Boiler and Pressure Vessel Compressed hydrogen (CH2) shall also comply with the Code, Section VIII. applicable portions of Chapters 23 and 58 of this code, the International Fuel Gas Code and NFPA 2. 5303.3 Pressure relief devices. Pressure relief devices shall be in accordance with Sections 5303.3.1 through 5303.3.5. Cutting and welding gases shall also comply with Chapter 35. 5303.3.1 Where required. Pressure relief devices shall be provided to protect containers, cylinders and tanks Exceptions: containing compressed gases from rupture in the event of overpressure. 1. Gases used as refrigerants in refrigeration systems (see Section 608). Exception: Cylinders, containers and tanks where exempt from the requirements for pressure relief 2. Compressed natural gas (CNG) for use as a vehic- devices specified by the standards of design listed in ular fuel shall comply with Chapter 23, the Section 5303.3.2. International Fuel Gas Code and NFPA 52. 5303.3.2 Design. Pressure relief devices to protect 3. Cryogenic fluids shall comply with Chapter 55. containers shall be designed and provided in accordance 4. LP-gas shall comply with Chapter 61 and the with CGA S-1.1, CGA S-1.2, CGA S-1.3 or the ASME Boiler and Pressure Vessel Code, Section VIII, as International Fuel Gas Code. applicable. 5301.2 Permits. Permits shall be required as set forth in 5303.3.3 Sizing. Pressure relief devices shall be sized in Section 105.5. accordance with the specifications to which the container was fabricated and to material-specific requirements as SECTION 5302 applicable. DEFINITIONS 5303.3.4 Arrangement. Pressure relief devices shall be 5302.1 Definitions. The following terms are defined in arranged to discharge upward and unobstructed to the Chapter 2: open air in such a manner as to prevent any impingement COMPRESSED GAS. 2021 INTERNATIONAL FIRE CODE® 53-1 EDUFIRE.IR Telegram: EDUFIRE.IR