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// CODE SNIPPET

427.7.3 Oxidizers and Organic Peroxides

NYC Building Code 2022 > 4 Special Detailed Requirements Based on Use and Occupancy > 427 Nonproduction Chemical Laboratories > 427.7 Quantity Limitations > 427.7.3 Oxidizers and Organic Peroxides
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The total quantity of solid and liquid oxidizers and organic peroxides combined allowed within a laboratory unit, excluding any quantities in a storage room, shall not exceed 40 pounds (18 kg), provided not more than 2 pounds (0.908 kg) of which are Class 3 oxidizers and 1 pound (0.454 kg) of which is Class I organic peroxides.

Exception: The total quantity of solid and liquid oxidizers and organic peroxides combined allowed within a laboratory unit that is provided with walls, floors and ceilings that separate the laboratory unit from all adjoining areas by 2-hour fire rated construction shall not exceed 50 pounds (23 kg), provided not more than 2 pounds (0.908 kg) of which is Class 3 oxidizers and 1 pound (0.454 kg) of which are Class I organic peroxides.

Related Code Sections


419.7.3 Special Detailed Requirements Based on Use and Occupancy, Oxidizers and Organic Peroxides
The total quantity of solid and liquid oxidizers and organic peroxides combined allowed within a laboratory unit, excluding any quantities ...
NYC Building Code 2008 > 4 Special Detailed Requirements Based on Use and Occupancy > 419 Non-Production Chemical Laboratories > 419.7 Quantity Limitations > 419.7.3 Oxidizers and Organic Peroxides
424.7.3 Special Detailed Requirements Based on Use and Occupancy, Oxidizers and Organic Peroxides
The total quantity of solid and liquid oxidizers and organic peroxides combined allowed within a laboratory unit, excluding any quantities ...
NYC Building Code 2014 > 4 Special Detailed Requirements Based on Use and Occupancy > 424 Nonproduction Chemical Laboratories > 424.7 Quantity Limitations > 424.7.3 Oxidizers and Organic Peroxides
427.7.3 Special Detailed Requirements Based on Use and Occupancy, Oxidizers and Organic Peroxides
The total quantity of solid and liquid oxidizers and organic peroxides combined allowed within a laboratory unit, excluding any quantities ...
NYC Building Code 2022 > 4 Special Detailed Requirements Based on Use and Occupancy > 427 Nonproduction Chemical Laboratories > 427.7 Quantity Limitations > 427.7.3 Oxidizers and Organic Peroxides
307.5 Use and Occupancy Classification, High-Hazard Group H-3
  Cryogenic fluids, oxidizing   Flammable solids   Organic peroxides, Classes II and III   Oxidizers, Classes 1 and 2 ...
NYC Building Code 2008 > 3 Use and Occupancy Classification > 307 High-Hazard Group H > 307.5 High-Hazard Group H-3
307.5 Use and Occupancy Classification, High-Hazard Group H-3
solids Organic peroxides, Classes II and III Oxidizers, Classes 1 and 2 Oxidizing gases Unstable (reactive) materials, Class 2 ...
NYC Building Code 2014 > 3 Use and Occupancy Classification > 307 High-Hazard Group H > 307.5 High-Hazard Group H-3
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