A Class B fire extinguisher is used for flammable liquid and gas fires such as oil, gasoline, etc. These fire extinguishers deprive the fire of oxygen and interrupt the fire chain by inhibiting the release of combustible vapors.
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 A B C ratings mean on Fire Extinguishers?
Fire extinguishers are classified by fire type. 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 …
Class B fire extinguishers have a slightly different numerical assignation. The number attached to these indicates how many feet of coverage the fire extinguisher can provide if swept back and forth. For example, a 15B extinguisher means that 15 feet of spray can be laid down. These can be combined on multi-class extinguishers.
People Also Ask what does b mean on fire extinguisher
What do the numbers on a Class B fire extinguisher mean?
Class B fire extinguishers have a slightly different numerical assignation. The number attached to these indicates how many feet of coverage the fire extinguisher can provide if swept back and forth. For example, a 15B extinguisher means that 15 feet of spray can be laid down. These can be combined on multi-class extinguishers.
What is a B1 fire extinguisher used for?
The letter "b" here indicate the b-1 extinguisher is effective against flammable liquid fires. These can be fires where cooking liquid , oil , gasoline , kerosene or paint. Similarly, what is a b1 fire extinguisher used for?
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 does 20B mean on a fire extinguisher?
The Class B size rating indicates the square footage the extinguisher can cover. 20B means that as long as you sweep the nozzle side to side, there is enough extinguishing agent inside the canister to provide 20 square feet of coverage. There is no size rating for Class C.
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TYPES OF FIRE AND FIRE EXTINGUISHERS | WHICH FIRE EXTINGUISHER TO BE USED ON WHICH CLASSES OF FIRE Video Answer
Reference:
https://www.usfa.fema.gov/
https://en.wikipedia.org/wiki/Fire_extinguisher