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e <br /> a . Fires are classified into groups according to the nature of the material subject <br /> to fire . Fire extinguisher classification corresponds to these groups : <br /> u <br /> REu <br /> Class A , <br /> MAR 0 2 2055 <br /> Class A Fires consists of ordinary combustibles such as wood , paper, trash or anything else that <br /> leaves an ash . Water works best to extinguish a Class A fire . ENVIRONMENTAI <br /> HEA TPH r1;: P.,8MTRPrn ` <br /> Class B <br /> Class B Fires are fueled by flammable or combustible liquids , which include oil , gasoline , and other <br /> similar materials . Smothering effects which deplete the oxygen supply work best to extinguish Class B <br /> fires . <br /> Class C <br /> Class C Fires . Energized Electrical Fires are known as Class C fires . Always de-energize the circuit <br /> then use a non-conductive extinguishing agent . Such as Carbon dioxide . <br /> Class D <br /> Class D Fires are combustible metal fires . Magnesium and Titanium are the most common types of <br /> metal fires . Once a metal ignites do not use water in an attempt to extinguish it . Only use a Dry <br /> Powder extinguishing agent . Dry powder agents work by smothering and heat absorption . <br /> Class K <br /> Class K Fires are fires that involve cooking oils , grease or animal fat and can be extinguished using <br /> Purple K, the typical agent found in kitchen or galley extinguishers . <br /> Sound like a lot? <br /> An easy way to remember these types of Fires is (beat) Class A leaves an Ash , (beat) Class B <br /> boils , (beat) Class C has current ( beat) , and Class D has Dense Material ( beat) , And don 't forget the <br /> most overlooked , Class K for Kitchen . <br />