APWs are designed for Class A (wood, paper, cloth) fires only.
Never use water to extinguish flammable liquid fires.
Water is extremely ineffective at extinguishing this type of fire, and you may, in fact, spread the fire if you try to use water on it.
Never use water to extinguish an electrical fire.
What fires can be put out with water?
Luckily, Class A fires are the easiest type to extinguish. The Fire Equipment Manufacturer’s Association recommended using a water or foam fire extinguisher on Class A fires. You can also use water to douse the fire, as it can remove the fire’s heat supply.
What are the 5 different classes of fire?
Classes of fire
- Class A – fires involving solid materials such as wood, paper or textiles.
- Class B – fires involving flammable liquids such as petrol, diesel or oils.
- Class C – fires involving gases.
- Class D – fires involving metals.
- Class E – fires involving live electrical apparatus. (
What are the 4 types of fire extinguishers?
There are four classes of fire extinguishers – A, B, C and D – and each class can put out a different type of fire.
- Class A extinguishers will put out fires in ordinary combustibles such as wood and paper.
- Class B extinguishers are for use on flammable liquids like grease, gasoline and oil.
What are the three methods of putting out a fire?
The extinguisher should be operated only by a qualified lab technician, as you may risk spreading a fire if you don’t know what you’re doing. What are the three main ways to put out a fire? Remove the fuel (Starvation), the heat (Cooling), or the oxygen (Smothering).