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A' Stockton Tri <br /> .0 rk Industries LLC <br /> FIRE EXTINGUISHER TRAINING <br /> FireTrianule <br /> Fire safety, at its most <br /> Oxygen I ��� �� basic, is based upon the <br /> o principle of keeping fuel <br /> rtwn sources and ignition <br /> sources separate. <br /> 4#N F-Etel <br /> Three things must be present at the same time to produce fire: <br /> 1. Enough Oxygen to sustain combustion <br /> 2. Enough Heat to reach ignition temperature <br /> 3. Some Fuel or combustible material <br /> Together, they produce the chemical reaction that is fire. Take away any of these <br /> things and the fire will be extinguished. <br /> FUEL CLASSIFICATIONS <br /> Fires are classified according to the type of fuel that is burning. If you use the wrong <br /> type of extinguisher on the wrong class of fire, you might make matters worse. It is very <br /> important to understand the four different fire (fuel) classifications: <br /> rPM Class A: Wood, paper, cloth, trash, plastics—solids that are not <br /> metals. <br /> Class B: Flammable liquids—gasoline, oil, grease, acetone. Includes <br /> flammable gases. <br />