Acid Storage Cabinet Requirements

A specialized cabinet for flammable chemicals.

Acid storage cabinet requirements.

A storage in excess of 25 gallons of flammable liquids or 60 gallons of liquids with a flashpoint greater than 199 4 o f 93 o c formerly designated class iiib combustible liquids shall be within cabinets constructed to the requirements of nfpa 30. A single piece leak proof floor pan is required to contain spills. A cabinet or area for sulfuric and nitric acids. A general storage cabinet or area where chemicals can be shelved separately based on their categories or hazardous rating.

No more than 120 gallons of category 4 liquids may be stored in a storage cabinet according to osha 29 cfr 1910 106 d 3 i. No more than 120 gallons of class iii liquids may be stored in a storage cabinet according to osha 29 cfr 1910 106 d 3 and nfpa 30 section 4 3 1. The interior lining shall be composed of one piece. A cabinet for corrosive acids.

A lock is required to maintain materials securely. The above nfpa guidelines refer specifically to flammable liquid storage cabinets. Acid cabinets shall have an interior of molded polyethylene or alternate material that is impervious to acids. Essentially a facility needs five chemical storage areas or cabinets.

The cabinet shall be approved by the manufacturer for the storage of strong acids concentrated nitric sulfuric or perchloric acids. To ensure that you comply with the dangerous goods regulations it is very important to store your acids and bases in a compliant corrosive resistant storage cabinet. Not more than 60 gallons may be category 1 2 or 3 liquids. If at the request of your ahj you re required to vent a corrosives acid cabinet make sure to incorporate a blower that s compatible with the vapors being exhausted.

The following chart lists the maximum volume of flammables that can be stored in a single flammable storage cabinet. Due to their critical function corrosive storage cabinets must be specified to meet special requirements including the following. Not more than three such cabinets may be located in a single fire area according to nfpa 30 section 4 3 1. And a cabinet or area for corrosive bases.