Want this question answered?
General purpose extinguisher, can be used for most fires (except cooking fats)
Class K extinguishers are used on Class K fires.
A class C fire extinguisher is used for electrical fires. A all purpose A, B, C extinguisher can also be used.
Burning liquid fires require a U.L. Class B fire extinguisher, or ABC, or BC.
A class C fire is an electrical fire. A class C extinguisher is approved for electrical fires.
Class A fires are fires involving solid flammable material like wood or paper. Class B fires are flammable chemicals such as gasoline or alcohol. Class C fires are electrical in origin. The numbers on each category describes how effective this fire extinguisher is for each type of fire.
A class D fire extinguisher is used for fighting class D fires. Class D fires are metal fires involving magnesium, potassium, sodium and sodium-potassium alloys. The class D extinguishers are mostly used in the aircraft industry, auto body shops and factories working with metal.
Class A fire extinguishers are used on Class A fires, that is, "ordinary combustibles" such as wood, paper, cloth, rubber and small amounts of plastics. Because it may contain conductive water, a Class A should never be used on an any other type of fire -- there could be a dangerous reaction.
A Class A (or ABC) extinguisher would be used to extinguish a paper fire. Class A - Ordinary Combustibles Class B - Flammable liquids Class C - Electrical fires Class D - Flammable metals Class K - Kitchen fires (organic fats/grease)
A class D fire extinguisher is used for fighting class D fires. Class D fires are metal fires involving magnesium, potassium, sodium and sodium-potassium alloys. The class D extinguishers are mostly used in the aircraft industry, auto body shops and factories working with metal.
Class B extinguishers are used for liquid fires, typically gasoline and oil fires. Extinguishers rated ABC will be effective against all three classes, but seldom as effective as a dedicated Class B extinguisher.
red = water and is used for wood paper textiles and solid material fires. DO not use on liquid elictrical or metal fires. blue = powder and is used for liquid and electrical fires. DO not use on metal fires. yellow = foam and is used for liquid fires. DO not use on electrical or metal fires black = carbon dioxide (CO) and is used for liquid and electrical fires DO not use on metal fires. halon can be used on all fires as well as dry chemical