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Home>Fire Extinguisher Type Selection Guide
 

Fire Extinguisher Type Selection Guide

- Fire Extinguisher Frequently Asked Questions
 
The National Fire Protection Association (NFPA) establishes requirements for the type, number, size, placement, performance and maintenance of portable fire extinguishers. These requirements are contained in NFPA 10, "Standard for Portable Fire Extinguishers".

Within this standard it is stated that the selection of fire extinguishers for a given situation is determined by the following:
  • the character and size of the fires anticipated to be encountered.
  • the construction and occupancy of the property to be protected.
  • the ambient temperature of the area where the extinguisher will be located.
  • other factors that may dictate the selection of a particular type of extinguisher.
FIRE CLASSIFICATIONS
Typically, proper fire extinguishers selection is based on the hazard(s) the extinguishers are intended to protect.  The Following is a list Classifications that have been established to categorize these hazards as follows:

Class A: Fires involving ordinary combustible materials such as wood, cloth, paper, rubber and many plastics.
Class B: Fires involving flammable liquids, combustible liquids, petroleum grease, tars, oils, oil based paints, solvents, lacquers, alcohols, and flammable liquids.
Class C: Fires that involve energized electrical equipment.
Class D: Fires involving combustible metals such as magnesium, sodium, potassium and sodium potassium alloys.

Class K: Fires involving combustible cooking media such as vegetable oils, animal oils and fats.







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