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Flammables, Liquids and Classifications for Storage Requirements

A flammable liquid is any liquid with a flash point below 100℉ (37.8℃) or higher, making up 99 percent of the total volume of the mixture. These liquids fall under Class I.

Class IA flammables are liquids with a flash point below 73℉ (22.8℃) ; boiling point below 100℉ (37.8℃). Examples include: acetaldehyde, butyne, chloropropylene, dimethyl sulfide, ethyl chloride, ethyl ether.

• Class IB flammables are liquids with a flash point below 73℉ (22.8℃) ; boiling point at or above 100℉ (37.8℃). Examples include: acetone, benzene, carbon disulfide, ethyl alcohol, ethyl acetate, gasoline, hexane, isopropanol, methanol, toluene.
• Class IC flammables are liquids with a flash point at or above 73℉ (22.8℃), but less than 100℉ (37.8℃). Examples include:  amyl alcohol, butyl alcohol, isobutyl alcohol, methyl isobutyl ketone, styrene, turpentine, xylene.

Combustibles and Combustible Storage Cabinets

A combustible liquid is any liquid with a flash point at or above 100ºF (37.8ºC). Combustible liquids are broken into two classes: Class II and Class III.

Class II combustibles are liquids with a flash point at or above 100℉ (37.8℃), but less than 140℉ (60℃). This does not include any mixture having components with flash points of 200ºF (93.3ºC) or more with a volume making up 99 percent or more of the total volume of the mixture. Examples include: No. 1, 2 and 3 fuel oils, kerosene, and hexyl alcohol.

Class III liquids is any liquid with flash points at or above 140ºF (60ºC) and are broken into two subclasses.

Class IIIA combustibles are liquids with a flash point at or above 140℉ (60℃), but less than 200℉ (93℃). This does not include any mixture having components with flash points of 200ºF (93.3ºC) or more with the total volume making up 99 percent or more of the total volume of the mixture.  Examples include: aniline, benzaldehyde, butyl cellosolve, nitrobenzene and pine oil.

• Class IIIB combustibles are liquids with a flash point at or above 200℉ (93℃). Examples include: animal oils; ethylene glycol; glycerine; lubricating, quenching, and transformer oils; triethanolamine; benzyl alcohol; hydraulic fluids and vegetable oils.

There are several things to consider when storing flammable and combustible liquids.

In a single cabinet, a maximum of 120 gallons of Class I, Class II, and Class IIIA liquids can be stored.

• In a single fire area, there cannot be more than 3 cabinets.
• In a single fire are, additional cabinets are limited to groups no larger than 3 with 100ft of separation between groups
• In any one group, the maximum number of cabinets can increase to 6 if stored in an Industrial Occupancy Facility equipped with an automatic sprinkler system meeting NFPA 13 standards.

Securall Storage Cabinets provide several features to ensure safety.

• 3-point, non-sparking button latch rod system
• leveling legs that level cabinet, ensuring closure every time
• models with self-close doors have Fusible Links to hold doors open (in case of a fire, the links will melt at 165F, automatically closing the doors)

Flammable storage cabinets from Securall are OSHA approved and designed to meet NFPA Code 30 standards. Whether you need to store cans of gasoline or kerosene or are required to protect employees from the danger of explosion hazards, Securall has a large selection of models and sizes to store flammable cans (Models #A30, #A305, #A145, etc.) or drums (Models #V260, #V1110, #H160, etc.).