Rubber, wood, paper or plastic
Class b
Class B
a
a
class B
Class A combustibles are generally considered to be ordinary items such as wood, paper, trash. Class A fires are extinguishable with a Class A fire extinguisher -(Water)
Class "B"
a
Class B extinguishers fight Flammable Liquid fires. The extinguisher classes: Class A: flammable solids Class B: flammable liquids Class C: fires involving electrical equipment. These agents don't conduct electricity. No extinguisher is rated as only for Class C fires; you will find Class B-C and Class A-B-C extinguishers. Class D: flammable metals Class K: kitchen fires
B
Just use the memory key A is for ash. Anything that leaves an ash is a class A fire. So paper, wood, cloth would all be good examples of class A fires. Class B is liquids such as gasoline or oil. Class C is electrical fires and class D is a special class for metals that burn such as magnesium.