Within the rules for chemical storage osha has different standards based on a chemical s flash or boiling point.
Osha flammable cabinet rules.
The osha standard sets volume limits on flammable chemicals based on its flammable classifications.
For example no safety cabinet is required to store less than 25 gallons of category 1 flammable liquids in approved containers.
Per 1910 106 d 3 ii storage cabinets must be designed and constructed to limit the internal temperature to not more than 325 f when subjected to a 10 minute fire test and the cabinets must be labeled in conspicuous lettering flammable.
Osha 29 cfr 1910 106 e 2 ii b.
Each cabinet must be labeled flammable keep fire away.
B the quantity of liquid that may be located outside of an inside storage room or storage cabinet in a building or in any one fire area of a building shall not exceed.
Not more than 25 gallons of flammable or combustible liquids may be stored in a room outside of an approved storage cabinet.
Incidental storage or use of flammable and combustible liquids.
When is a flammable liquid storage cabinet required.
1926 152 b indoor storage of flammable liquids 1926 152 b 1 no more than 25 gallons of flammable liquids shall be stored in a room outside of an approved storage cabinet.
For storage of liquefied petroleum gas see 1926.
Cabinet must be doubled walled with 1 airspace 3.
Osha flammable storage requirements also shift based on on the number of chemicals being stored.
Flammable liquids shall not be stored in areas used for exits stairways or normally used for the safe passage of people.
The nfpa osha and ufc require flammable cabinets to be designed and constructed to specific requirements.
Further the flammable liquid storage rules consider whether the chemicals are stored indoors or outdoors.
No more than 60 gallons of a category 1 2 or 3 flammable liquid or 120 gallons of a category 4 flammable liquid may be stored in a single flammable safety cabinet.
Not more than 60 gallons of flammable flashpoint below 140 degrees f or 120 gallons of combustible flashpoint at or above 140 degrees f may be stored in any one storage cabinet.
1910 106 d 3 ii a states that flammable materials cabinets shall be constructed in the following manner.
1910 106 a 3 automotive service station shall mean that portion of property where flammable liquids used as motor fuels are stored and dispensed from fixed equipment into the fuel tanks of motor vehicles and shall include any facilities available for the sale and service of tires batteries and accessories and for minor automotive maintenance work.
See osha 29 cfr 1910 106 a 19 i iv chart above for determining a chemical s flammable category.
Bottom top and sides of cabinet shall be at least no.
Safety cabinets allow for greater quantities of flammable and combustible liquids to be stored safely inside buildings.
The nfpa and osha require flammable cabinets to be designed and constructed to specific requirements.