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// CODE SNIPPET

Article 20 Occupancies Involving Storage of Nitric Acid

NYC 1968 Code (Vol I) > 7 Special Uses and Occupancies > 20 Occupancies Involving Storage of Nitric Acid
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§27-518 Application

This article shall apply to the construction, alteration and use of buildings or spaces wherein nitric acid is stored.

§27-519 Location

Carboys containing nitric acid shall be stored in storage vaults.

§27-520 Construction Requirements

(a) Vaults shall be constructed of incombustible acid-resistant material with a fire resistance of at least one hour.

(b) Doors opening into such storage vaults shall be self-closing, noncombustible fire doors with a fire-protection rating of at least three quarters of an hour.

(c) Vault floors shall be constructed of acid-resistant brick, concrete treated with sodium silicate or other acid-proof material and shall incorporate a dike constructed of the same material, whose height shall be adequate to contain the acid plus the neutralizing substance that would be necessary to neutralize said acid plus six inches.

(d) The floor shall be provided with a valved drain which shall be connected to the drainage system in accordance with the requirements of subchapter sixteen of this chapter.

§27-521 Ventilation

tppn
Linked Resources Available

This section has been clarified by a tppn issued by the Department of Buildings.

Learn more in the Linked Resources panel on the right.
Mechanical ventilation systems for storage vaults shall be adequate to effect ten complete air changes per hr. Exhaust shall be taken from within twelve inches above the level of the top of the dike. The exhaust system shall be independent of exhaust systems serving other parts of the building and the openings to the outdoors shall be located in accordance with the provisions of subchapter thirteen of this chapter for system conveying vapors.

Related Code Sections


Article 20 Special Uses and Occupancies, Occupancies Involving Storage of Nitric Acid
Carboys containing nitric acid shall be stored in storage vaults ...
NYC 1968 Code (Vol I) > 7 Special Uses and Occupancies > 20 Occupancies Involving Storage of Nitric Acid
§27-417 Special Uses and Occupancies, Storage
to be stored. When any materials are subject to melting, vaporization, or oxidation under fire conditions, the storage vaults shall be constructed of walls ...
NYC 1968 Code (Vol I) > 7 Special Uses and Occupancies > 4 Uses and Occupancies Involving Radioactive Materials and Radiation-Producing Equipment > §27-417 Storage
420.5 Special Detailed Requirements Based on Use and Occupancy, Storage
When any materials are subject to melting, vaporization, or oxidation under fire conditions, the storage vaults shall be constructed ...
NYC Building Code 2008 > 4 Special Detailed Requirements Based on Use and Occupancy > 420 Uses and Occupancies Involving Radioactive Materials and Radiation-Producing Equipment > 420.5 Storage
425.5 Special Detailed Requirements Based on Use and Occupancy, Storage
When any materials are subject to melting, vaporization, or oxidation under fire conditions, the storage vaults shall ...
NYC Building Code 2014 > 4 Special Detailed Requirements Based on Use and Occupancy > 425 Uses and Occupancies Involving Radioactive Materials and Radiation-Producing Equipment > 425.5 Storage
428.5 Special Detailed Requirements Based on Use and Occupancy, Storage
When any materials are subject to melting, vaporization, or oxidation under fire conditions, the storage vaults shall ...
NYC Building Code 2022 > 4 Special Detailed Requirements Based on Use and Occupancy > 428 Uses and Occupancies Involving Radioactive Materials and Radiation-Producing Equipment > 428.5 Storage
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