Inside storage rooms (Liquid Storage Rooms) are normally used:
- when the containers are opened for mixing, pouring, dispensing, or transfer of flammable liquids;
- if the quantity is too large to fit into an approved cabinet;
- if the quantity is excessive for any one fire area; and/or
- if the opened containers cannot be separated from potential sources of ignition.
As defined by NFPA 30 paragraph 3.3.34 , Liquid Storage Room is a room used for storage of liquids in containers, portable tanks or intermediate bulk containers, has a floor area that DOES NOT EXCEED 500 square feet and may be completely inside of the building; or inside with one (1) common wall; or outside with one (1) common wall of the building.
Storage and use of flammable liquids are generally permitted outside of a flammable liquid storage room or cabinet if the storage is considered to be: