ABC Fire Extinguishers use mono-ammonium phosphate which is a dry chemical that is able to quickly put out all three classes of fire, Class A, Class B and Class C, meaning they’re suitable for putting out wood and paper fires, flammable liquid fires, and electrical fires.
Dry Chemical Extinguishers "DC" short for "dry chem" • "ABC" indicating that they are designed to extinguish class A,B,and C fires, or • "BC" indicating that they are designed to extinguish class B and C fires. "ABC" fire extinguishers are filled with a fine yellow powder.
What do the A B C ratings mean on Fire Extinguishers?
The A, B, C rating system defines the kinds of burning materials each fire extinguisher is designed to fight. The number in front of the A, B, or C indicates the rating size of fire the unit can extinguish. To achieve a Class “A” rating, the extinguisher must be capable of putting out the wood crib, wood panel and excelsior (shredded paper) tests.
The letter on a fire extinguisher indicates its classification: Class A puts out ordinary combustible fires (wood, paper, plastic, etc.) Class B puts out flammable liquid fires (oil, gas, petroleum, etc.) Class C puts out electrical fires. Class D puts out combustible metal fires (magnesium, titanium, potassium, sodium, etc.)
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What do the letters on a fire extinguisher mean?
The letter on a fire extinguisher indicates its classification: Class A puts out ordinary combustible fires (wood, paper, plastic, etc.) Class B puts out flammable liquid fires (oil, gas, petroleum, etc.) Class C puts out electrical fires
What do the ABC ratings on portable fire extinguishers mean?
Answered Oct 16, 2019. ABC ratings on portable fire extinguishers means a multipurpose extinguishers that can extinguish classes A (ordinary combustibles) B (flammable liquids and gases) and C (energized electrical equipments) also consider any fire involving uncharged class C equipments are treated as class A.
What does ABCABC mean on a fire extinguisher?
ABC ratings on portable fire extinguishers means a multipurpose extinguishers that can extinguish classes A (ordinary combustibles) B (flammable liquids and gases) and C (energized electrical equipments) also consider any fire involving uncharged class C equipments are treated as class A. Click to see full answer.
What does 4A 20B C mean on a fire extinguisher?
You might come across a fire extinguisher labeled 4A:20B:C. The numbers indicate the size rating of each extinguishing agent. Here’s how it works: The Class A size rating represents the water equivalency.
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CLASSES OF FIRE AND EXTINGUISHER Video Answer
Reference:
https://www.usfa.fema.gov/
https://en.wikipedia.org/wiki/Fire_extinguisher