Acid Storage Cabinet Venting

Air should be removed from the bottom vent opening of the cabinet.

Acid storage cabinet venting.

For those fume hoods provided with vented under counter chemical storage cabinets to reduce odor each cabinet shall be connected to a 1 5 inch diameter vent tube which penetrates and is sealed to the fume hood countertop. Free standing cabinets in biomedical labs shall not be vented. During a fire vapor from the hazardous chemicals in the cabinet may be released. Cabinets located under fume hoods shall be vented into the plenum of the hood using manufacturer supplied vent kits.

While cabinet manufacturers may provide the bungs for ventilation purposes venting flammable liquid storage cabinets is not required or even recommended by any federal regulatory agency. The university of wisconsin sets forth the following. Therefore it is recommended that storage cabinets including acid storage and flammables storage cabinets not be ventilated see nfpa. Cabinet manufacturers include venting bungs for users who may be required to vent by state or local codes individual company policies insurance carrier policies or any other authority having jurisdiction ahj.

Venting a chemical storage cabinet is not necessary for fire protection. In fact a vented cabinet could compromise the ability of the cabinet to protect its contents from a fire. The progard nu 50 vented acid storage cabinet is corrosive resistant allowing proper ventilation for storage of acids and chemicals. Bungs shall be used to seal vent openings.

Cabinet shall be labeled acid or corrosive. 3 optional chemical storage cabinets.