Class B - Flammable and Combustible Material

Class B – Flammable and Combustible Material

Flammable means that the material will burn or catch on fire easily at normal temperatures (below 37.8 degrees C or 100 deg F).

Combustible materials must usually be heated before they will catch on fire at temperatures above normal (between 37.8 and 93.3 deg. C or 100 and 200 deg. F).

Reactive flammable materials may suddenly start burning when exposed to air or water, or may react with air or water to make a flammable gas.

These materials may be in solid, liquid or gas format, which makes up the different divisions that fall under this class.

Common examples of Class B materials include: butane, acetylene, ethanol, turpentine, kerosene, Stoddard solvent, spray paints and varnish.