Class A : General flammable materials, such as furniture, paper, fabric, and lumber

Class B : Combustible liquids, such as motor oil, paint, automotive fuel, alcohol, tinner

Class C : LPG, flammable gas

Class D : Flammable metals, such as lithium, titanium, magnesium, aluminum

Class F : Kitchen flammables, such as grease or fat used in a frying pan or deep fryer