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Firefighting Standards - NFPA 400

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NFPA 400

Hazardous Materials Code
NFPA 400 - Hazardous Materials Code

1.1 Scope. 1.1.1 Applicability. This code shall apply to the storage, use, and handling of the following hazardous materials in all occupancies and facilities: (1) Corrosive solids and liquids (2) Flammable solids (3) Organic peroxide formulations (4) Oxidizer–liquids or solids (5) Pyrophoric solids and liquids (6) Toxic and highly toxic solids and liquids (7) Unstable (reactive) solids and liquids (8) Water-reactive solids and liquids Occupancies. Unless otherwise specified in this code, all occupancy definitions and classifications shall be in accordance with NFPA 5000. Multiple Hazards. Hazardous materials that are classified in more than one hazard category, as set forth in 4.1.1, shall conform to the code requirements for each hazard category. 1.1.2 Exemptions. The quantity and arrangement limits in this code shall not apply to facilities that use ammonium perchlorate in the commercial manufacture of large-scale rocket motors. This code shall not apply to the following: (1) Storage or use of hazardous materials for individual use on the premises of one- and two-family dwellings (2) Explosives or blasting agents, which are regulated by NFPA 495, Explosive Materials Code (3) Refrigerants and refrigerant oil contained within closed cycle refrigeration systems complying with the fire code and the mechanical code adopted by the jurisdiction (4) High hazard contents stored or used in farm buildings or similar occupancies and in remote locations for on-premises agricultural use (5) Corrosive materials in stationary batteries utilized for facility emergency power or uninterrupted power supply, or similar purposes, in accordance with NFPA 1 (6) Aerosols in storage complying with NFPA 30B (7) Consumer fireworks 1.4G (UN0336, UN0337, UN0431, and UN0432) in mercantile occupancies complying with NFPA 1, Section 65.11 (8) Corrosive materials displayed in original packaging in mercantile occupancies and intended for personal or household use or as building materials (9) Flammable and combustible liquids having no other physical or health hazard properties covered by this code (10) Organic peroxide formulations that are capable of detonation either unpackaged or in their normal shipping containers under conditions of fire exposure, which are to be handled and stored as Explosives 1.1 (formerly known as Class A explosives) in accordance with NFPA 495, Explosive Materials Code (11) Combustible metals, as defined in NFPA 484.

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