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Class A Extinguishers will
put out fires in ordinary combustibles, such as
wood and paper. The numerical rating for this
class of fire extinguisher refers to the amount
of water the fire extinguisher holds and the
amount of fire it will extinguish. |
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Class B Extinguishers should
be used on fires involving flammable liquids,
such as grease, gasoline, oil, etc. The
numerical rating for this class of fire
extinguisher states the approximate number of
square feet of a flammable liquid fire that a
non-expert person can expect to extinguish. |
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Class C
Extinguishers are suitable for
use on electrically energized fires. This class
of fire extinguishers does not have a numerical
rating. The presence of the letter “C”
indicates that the extinguishing agent is
non-conductive. |
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Class D Extinguishers are
designed for use on flammable metals and are
often specific for the type of metal in
question. There is no picture designator for
Class D extinguishers. These extinguishers
generally have no rating nor are they given a
multi-purpose rating for use on other types of
fires. |
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