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 | 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. |
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Class A - Wood, paper, cloth, trash, plastics Solid combustible materials that are not metals. |
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Class B - Flammable liquids: gasoline, oil, grease, acetone Any non-metal in a liquid state, on fire |
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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. |
