Search within:

Types of Fuel

Fire Banner
Fire Trianlge Symbol

Fire Triangle



Types Symbol


Fire Extinguisher Icon


Pass icon

How To Use a Fire Extinguisher

Not all fuels are the same, and if you use the wrong type of fire extinguisher on the wrong type of fuel, you can, in fact, make matters worse. It is therefore very important to understand the four different classifications of fuel.

Trash icon

Class A - Wood, paper, cloth, trash, plastics
Solid combustible materials that are not metals.


Gas icon

Class B - Flammable liquids: gasoline, oil, grease, acetone
Any non-metal in a liquid state, on fire.


Electric icon

Class C - Electrical: energized electrical equipment
As long as it's "plugged in," it would be considered a class C fire.

Class D - Metals: potassium, sodium, aluminum, magnesium Unless you work in a laboratory or in an industry that uses these materials, it is unlikely you'll have to deal with a Class D fire. It takes special extinguishing agents (Metal-X, foam) to fight such a fire.
Most fire extinguishers will have a pictograph label telling you which fuels the extinguisher is designed to fight. For example, a simple water extinguisher might have a label like the one below, indicating that it should only be used on Class A fuels.

Trash, gas, electric icons