Difference between revisions of "Fire extinguisher"
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A '''fire extinguisher''' is a handheld, typically cylindrical, device used to extinguish small [[fire]]s. Such devices contain a fire-suppressive agent, typically under pressure, and are used by spraying this suppressive agent over the base of a fire, smothering the fire out. Fire extinguishers are typically used in an emergency, and should not be wasted on routine, controlled fires (such as a [[campfire]]). | A '''fire extinguisher''' is a handheld, typically cylindrical, device used to extinguish small [[fire]]s. Such devices contain a fire-suppressive agent, typically under pressure, and are used by spraying this suppressive agent over the base of a fire, smothering the fire out. Fire extinguishers are typically used in an emergency, and should not be wasted on routine, controlled fires (such as a [[campfire]]). | ||
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| + | Fire extinguishers are rated for the types of fires they are effective against: | ||
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| + | * Class A: ordinary flammable solids, such as wood and paper. | ||
| + | * Class B: flammable liquids, such as grease, oil, and gasoline. | ||
| + | * Class C: electrical fires. | ||
| + | * Class D: flammable metals. | ||
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| + | The steps in correct use of a fire extinguisher can be remembered by the acronym P.A.S.S.: Pull, Aim, Squeeze, Sweep. | ||
Revision as of 11:20, July 7, 2007
A fire extinguisher is a handheld, typically cylindrical, device used to extinguish small fires. Such devices contain a fire-suppressive agent, typically under pressure, and are used by spraying this suppressive agent over the base of a fire, smothering the fire out. Fire extinguishers are typically used in an emergency, and should not be wasted on routine, controlled fires (such as a campfire).
Fire extinguishers are rated for the types of fires they are effective against:
- Class A: ordinary flammable solids, such as wood and paper.
- Class B: flammable liquids, such as grease, oil, and gasoline.
- Class C: electrical fires.
- Class D: flammable metals.
The steps in correct use of a fire extinguisher can be remembered by the acronym P.A.S.S.: Pull, Aim, Squeeze, Sweep.