Grounding Flammable Storage Cabinets Osha

When it comes to the safe storage of flammables it is always a good idea to ground the cabinet when possible for safety purposes.

Grounding flammable storage cabinets osha. Flashpoint is the minimum temperature at which a liquid gives off enough vapor to form an ignitable mixture with air near the surface of the liquid. If you are going to dispense class 1 flammable liquids from a container held within safety cabinet you need to ground the cabinet. Such storage shall be kept in closed metal containers stored in a storage cabinet or in safety cans or in an inside storage room not having a door that opens into that portion of the building used by the public. Category 1 or 2 flammable liquids or category 3 flammable liquids with a flashpoint below 100 f.

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. As an industry best practice we recommend grounding the cabinet when dispensing class 2 combustible liquids if the liquids are near at or above the liquid s flashpoint temperature. The osha flammable liquid storage requirements state that every chemical possessing a flash point below 199 4 f or 93 c is deemed flammable you may remember hearing the word combustible but that word is no longer used in the standard. The connection is merely provided by the manufacturer.

Osha flammable cabinet grounding requirements. Osha compliance with flammable and combustible liquids. The flashpoint and boiling point determine the category of a flammable liquid. Grounding and bonding becomes a concern during the transfer of flammable liquids.

1926 152 b 4 i. Some flammable liquids storage cabinets have a grounding screw. Whats people lookup in this blog. While flammable storage cabinets are not required to be grounded by federal regulations many manufacturers do provide a built in grounding lug on their cabinets generally located on the bottom right side.

However nfpa 30 flammable and combustible liquids does not require the cabinet to be grounded. Combustible cabinets safety storage meet osha s standard bonding and grounding of flammable liquids quick tips 255 safety cabinets for flammable products grounding a justrite safety cabinet ventilation guidelines for flammable and chemical storage cabinets. Updates to osha and fire codes. However some chemicals are certainly more flammable than others.

Nfpa 30 does not require the screens as can be seen in the definition of safety can in subsection 3 3 48. Quantities in excess of this shall be stored in an inside storage room. Some flammable safety cabinets are equipped with grounding connections.