The numbers indicate the size rating of each extinguishing agent. Here’s how it works: The Class A size rating represents the water equivalency. Each number represents 1 ¼ gallons of water. For instance, 2A means the extinguisher is just as effective as 2 ½ gallons of water. 4A is equivalent to 5 gallons of water.
Understanding fire extinguisher colour codes is crucial to safety and wellbeing. It can mean the difference between effectively putting out a fire and causing further damage to property and potential harm to people. You can find the colour code of your fire extinguisher on the band around the canister. The different colour codes are as follows:
Guide to Fire Extinguisher Sizes, Types, & Ratings
Fire Extinguisher Sizes. The size of a fire extinguisher indicates the amount of extinguishing agent it holds and is most often measured in pounds. Sizes can range from as small as 2.5 lb. to as large as 350 lb. While the largest extinguishers will come with built-in wheels to make transportation manageable, size is always important to consider.
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What do the fire extinguisher ratings c&k mean?
C & K: These letters indicate that an extinguisher can be used effectively against these fire classes. In practical terms, that means that if Fire Extinguisher 1 has a 4-A:80-B:C rating and Fire Extinguisher 2 has a 1-A:10-B:C rating, Fire Extinguisher 1 is… Both extinguishers can combat class C fires.
What does 4A mean on a fire extinguisher?
One A is equivalent to 1.25 gallons of water, so a unit with a 4A rating has an equivalent of 5 gallons of water to battle Class A fires. B: The number in front of the "B" is a relative measure of the area an extinguisher can cover.
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 comes out of a fire extinguisher?
The extinguishing agent comes out of the extinguisher to eliminate fires. It is fed out of the extinguisher’s tank via a pickup tube once an expellant (often from a compressed gas canister) is released into the tank. The expellant is released when the safety pin is removed and the discharge lever is squeezed.
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What is FIRE EXTINGUISHER? What does FIRE EXTINGUISHER mean? FIRE EXTINGUISHER meaning Video Answer
Reference:
https://www.usfa.fema.gov/
https://en.wikipedia.org/wiki/Fire_extinguisher