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 …
Each class is identified with a symbol and pictogram representing the type of fire it will put out. Class A Rating: Class A fire extinguishers are meant to be used against fires involving paper, wood, plastic, cloth and other ordinary combustible materials. Identified with the letter A inside a green triangle. Class B Rating: Extinguishers with a Class B rating are meant for putting out …
What do the A B C ratings mean on Fire Extinguishers?
There are 5 different Fire Classes and extinguishers are labeled to meet these individual classes. Fire Extinguisher Classes Include: Class A: Ordinary Combustibles like Wood, Paper and Cloth. Class B: Flammable Liquids like Grease, Oil, Paint and Solvents. Class C: Live Electrical Equipment like Electrical Panels, Motors and Wiring.
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What do the B C ratings mean on fire extinguishers?
Thus, a 4A will equal about five gallons of water. The numbers on a B or C rating will indicate the square footage that extinguisher can handle. The letter indicates the type of fire that the fire extinguisher can be used on. For example, a rating of 2B means that the fire extinguisher can be used to combat two square feet of a Class B fire.
What is the best fire extinguisher?
Foam extinguishers: The label colouring for this type of extinguisher is cream.Water extinguishers: The label colour for this type of fire extinguisher is bright red.Dry powder extinguishers: The label colouring for this type of fire extinguisher is blue.Wet chemical extinguishers: The label colour for this type of fire extinguisher is yellow.
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What is the difference between 5BC and 10BC fire extinguisher?
What is the difference between 5BC and 10BC fire extinguisher? In our tests, the 10BC units discharged only a fraction of a second longer than the 5BC, hardly “twice” anything. The 10BC, on average, discharged only 25% more fire suppressant than the 5BC. What is the best size fire extinguisher for home use?
What are the classifications of fire extinguishers?
Class A. Extinguishers rated for class A fires are acceptable for dealing with ordinary combustibles, including wood, paper, textiles, and some plastics. …Class B. Extinguishers marked with a square containing the letter B are acceptable to use with flammable liquid and gas fires, including oil and gasoline. …Class C. …Class D. …Class K. …
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CLASSES OF FIRE AND EXTINGUISHER Video Answer
Reference:
https://www.usfa.fema.gov/
https://en.wikipedia.org/wiki/Fire_extinguisher