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Fire Extinguisher Ratings |
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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