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.
There are various types of fire extinguishers. Such as are water-fire extinguishers, dry-type fire extinguishers, gas fire extinguishers, and foam …
Fire extinguisher types: How to choose the right class
These can be divided into six categories of fire involving different substances: Class A, combustible carbon-based solids eg paper, wood or …
Drivers should be aware that these types of fire extinguishers can cause damage to the engine and any electronic components under the hood—a small price to pay, however, when safety is on the line. Another type that is popular among car owners is a clean agent fire extinguisher, which is also known as a halogenated extinguisher. These use a mix of gases to …
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Can a fire extinguisher put out a fire completely?
They may have spray or jet nozzles and are usually able to put out a fire completely. A drawback is that they cannot be used on burning fat or oil (Class F), burning metals (Class D), burning liquids (Class B) or electrical appliance fires.
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 are the disadvantages of Class A fire extinguishers?
A drawback is that they cannot be used on burning fat or oil (Class F), burning metals (Class D), burning liquids (Class B) or electrical appliance fires. The newest type of extinguisher.
How does a Class A fire extinguisher work?
For use on Class A fires, the multipurpose agent has the additional characteristic of softening and sticking when in contact with hot surfaces. In this way, it adheres to burning materials and forms a coating that smothers and isolates the fuel from air.
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FIRE EXTINGUISHER REGULATIONS Video Answer
Reference:
https://www.usfa.fema.gov/
https://en.wikipedia.org/wiki/Fire_extinguisher