Venting Requirements Chemical Storage Cabinets

Venting a chemical storage cabinet is not necessary for fire protection.

Venting requirements chemical storage cabinets.

Approved metal storage cabinets will be acceptable. We ve outlined guidelines for ventilation in chemical storage units to help promote chemical safety in the workplace. The only time you may want to ventilate a chemical storage cabinet is if the ventilation in the laboratory or chemical stores area is inadequate or you are required to provide cabinet ventilation because of state or local law. 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.

Place chemical storage cabinets in a cool dry location out of direct sunlight and away from any possible heat or ignition source. If venting is being considered 9 5 4 2 addresses some minimal design requirements. Wherever people are in an area where the corrosive substances are kept adequate ventilation shall be provided. Section 6 2 4 of this standard states.

Venting a chemical storage cabinet is not necessary for fire protection. Cabinet ventilation is not an alternative. Where ventilation is installed it shall be designed so that vapours are prevented from escaping into any room. It states if a storage cabinet is ventilated for any reason the vent openings shall be ducted directly to a safe location outdoors or to a treatment device designed to control volatile organic compounds vocs and ignitable vapors in such a manner that will not compromise the specified performance of the cabinet and in a manner that is acceptable to the ahj if the cabinet is not vented the nfpa code.

Section 4 9 5 of this standards states. Generally ventilation of chemical storage cabinets should not be required unless it is determined to be an essential risk and safety control measure or the standard requires it. General chemical storage guidelines. The australian standard that sets out the ventilation requirements for corrosive storage cabinets is as3780 2008 the storage and handling of corrosive substances.

Temperature fluctuations in many chemicals can serve to increase vapour emissions. 1926 152 b 2 iii cabinets shall be labeled in conspicuous lettering flammable keep away from open flames 1926 152 b 3 not more than 60 gallons of category 1 2 and or 3 flammable liquids or 120 gallons of category 4 flammable liquids shall be stored in any one storage cabinet. Before venting cabinets consider the following precautions and options. When provisions of this code require that liquid containers be stored in storage cabinets such cabinets and storage shall be in accordance with this section.