What does B stand for on fire extinguisher?
Class B. Class B fires involve flammable and combustible liquids such as gasoline, alcohol, oil-based paints, lacquers. Therefore, extinguishers with a B rating are designed to extinguish fires involving flammable and combustible liquids.
What do the numbers on fire extinguishers mean?
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.
What does 5 B mean on a fire extinguisher?
The numbers indicate the size of fire the extinguisher will put out compared to other extinguishers. For example, a 10B:C extinguisher contains more chemicals and will put out a larger fire than a 5B:C extinguisher.
What type of fire will be put out by a 5 B?
Carbon Dioxide (CO2) extinguishers rated from 5:B:C to 10B:C. Buckeye’s 120B:C “Purple K” dry chemical extinguisher, designed to tackle even the most serious flammable liquid fires.
What does 2 A 10 B C mean on fire extinguisher?
These numbers are a UL/ULC rating that indicates the amount of firefighting capacity with the square feet covered for the type of fire. Therefore a 2A: 10 BC extinguisher means 2.5 gallons of water (firefighting capacity) for 10 square feet covered for a BC Type fire.
What is the best defense against fires?
As always, the best defense against a fire is to be prepared. Take a moment to look at your fire extinguisher.
How do you determine fire extinguisher rating?
Also located on the fire extinguisher label is the UL rating. The UL rating is broken down into Class A and Class B:C ratings. These numerical ratings allow you to compare the relative extinguishing effectiveness of various fire extinguishers.
What does a rating of 40 on a Class B extinguisher mean?
To qualify as a light hazard for the purpose of extinguisher election and placement, the majority of materials in the area must. be noncombustible. What does a rating of 40 on a Class B extinguisher mean. Sufficient extinguishing power for 40 square feet of burning fuel.