Flammable Liquid

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Flammable Liquid

In the USA, there is a precise definition of flammable liquid as one with a Flashpoint below 100 degrees Fahrenheit . Less-flammable liquids (with a flashpoint between 100 degrees and 200 degrees Fahrenheit ) are defined as '''combustible liquid'''. This definition is used by the National Fire Protection Association , The US Department Of Transportation , the US Environmental Protection Agency , the US Occupational Safety And Health Administration and others.

Threse categories are further subdivided, depending on the liquid's flashpoint and boiling point.

Class IA flammable liquids have a flash point below 73 °F and a boiling point below 100 °F

Class IB flammable liquids have a flash point below 73 °F and a boiling point greater than or equal to 100 °F

Class IC flammable liquids have a flash point greater than or equal to 73 °F and below 100 °F

Class II combustible liquids have a flash point greater than or equal to 100 °F and below 140 °F

Class IIIA combustible liquids have a flash point greater than or equal to 140 °F and below 200 °F

Class IIIB combustible liquids have a flash point greater than or equal to 200 °F