Film-forming foam type. AFFF (aqueous film-forming foam) and FFFP (film-forming fluoroprotein) fire extinguishers are rated for use on both Class A and Class B fires. As the name implies, they discharge a foam material rather than a liquid or powder. They are not suitable for use in freezing temperatures.
Water and Foam. The Water and Foam extinguisher eliminates a fire by allowing water to take away the heat component of a fire while foam separates oxygen from the fire. A water extinguisher should only be used on Class A fires (Combustibles such as wood, paper, cloth, trash, and plastics). If used on a Class B fire (flammable liquid of gas or …
What are the 5 Types of Fire Extinguishers? – Vanguard
Co2 Fire Extinguisher. A CO2 fire extinguisher contains pure carbon dioxide. It works to suffocate the fire by transferring the oxygen it needs to burn. This type of extinguisher is suitable for Class B fires (flammable liquids …
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What are the different types of chemical fire extinguishers?
Types of agents available include sodium bicarbonate base and potassium bicarbonate base. Dry chemical type extinguishers have special treatments that ensure proper flow capabilities by providing resistance to packing and moisture absorption (caking). Fire extinguishers of this type contain an ammonium phosphate base agent.
What type of fire extinguisher do you need for your business?
For example, let’s consider a commercial office building. The office space itself might just need a Class A fire extinguisher, to protect against ordinary combustible fires. But, you might also need a Class C fire extinguisher if you have a lot of electronics or a server room that could overheat.
How is the extinguishing agent applied to the fire extinguisher?
The extinguishing agent can be applied from a fire extinguisher or by scoop and shovel. Using a scoop or shovel is often referred to as a hand propelled fire extinguisher.
Can a Class A fire extinguisher be used on electronic devices?
Larger models of these fire extinguishers are listed for Class A as well as Class B and Class C fires, which makes them quite suitable for use on fires in electronic equipment. When discharged, these agents are in the combined form of a gas/mist or a liquid, which rapidly evaporates after discharge with about twice the range of carbon dioxide.
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What are the different types of fire extinguishers and different Classes of Fire? Video Answer
Reference:
https://www.usfa.fema.gov/
https://en.wikipedia.org/wiki/Fire_extinguisher