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ABC FIRE EXTINGUISHER INFORMATION

 

ABC Fire Extinguishers are very versatile and therefore a very common choice. They are often the ideal choice being that they are able to put out many different types of fires.

 

They use monoammonium phosphate which is a dry chemical that is able to quickly put out the fire. This is a pale yellow powder that is able to put out all three classes of fire; Class A for general garbage, wood and paper, Class B for flammable liquids and gases, and Class C for powered electrical items. The dry chemical smothers the fire.

 

Note that it does leave a powder residue once the fire has been put. So, if you have expensive equipment that could be damaged by such powders, there are alternative options available which leave little or no residue. We would be happy to discuss your needs.

What the A B C ratings mean on ABC Fire Extinguishers

“A” GARBAGE–WOOD–PAPER

“A” GARBAGE–WOOD–PAPER

Fire extinguishers with a Class A rating are effective against fires involving paper, wood, textiles, and plastics. The primary chemical used to fight these fires is monoammonium phosphate, because of its ability to smother fires in these types of materials.

“B” LIQUIDS

Fire extinguishers with a Class B rating are effective against flammable liquid fires. These can be fires where cooking liquids, oil, gasoline, kerosene, or paint have become ignited. Two commonly used chemicals are effective in fighting these types of fires. Monoammonium phosphate effectively smothers the fire, while sodium bicarbonate induces a chemical reaction which extinguishes the fire.

“C” ELECTRICAL EQUIPMENT

Fire extinguishers with a Class C rating are suitable for fires in “live” electrical equipment. Both monoammonium phosphate and sodium bicarbonate are commonly used to fight this type of fire because of their nonconductive properties.