It uses a specially fluidized and siliconized monoammonium phosphate powder. ABC dry chemical is usually a mix of monoammonium phosphate and ammonium sulfate, the former being the active one
Class A fires: It insulates Class-A fires by melting at approximately 350â400 degrees F. Class "A" fires are caused by the burning of common combustible materials, such as wood, paper, or trash.
Class B fires: The powder breaks the chain reaction of Class-B fires by coating the surface to which it is applied. Class B fires consist of flammable liquid or gas which include gasoline, oil, propane, and natural gas.
Class C fires: It is safe and effective for Class-C fires since it is a non-conductor of electricity. Class C fire deals with live electrical equipment and need to be put out with equipment that will not conduct its energy back to the user as in the case with water. Electricity can also cause Class A and B fires.
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