Foam fire extinguishers work in 2 ways. They are mainly water-based and so have the same cooling effect as water extinguishers, putting the fire out by lowering the temperature. They contain ‘Aqueous Film Forming Foam’ (this is why they are also known as AFFF foam extinguishers). AFFF works by smothering the fire and sealing in the flammable vapours.
How do I use foam fire extinguisher? Foam extinguishers can be used just like any fire extinguisher. Simply follow the PASS technique: Pull the Pin. Aim it at the fire. Squeeze the handle. Sweep from side to side. Learn more …
Foam fire extinguishers – colours and uses explained
How do foam extinguishers work? Foam fire extinguishers work in 2 ways. Firstly, they are mainly water-based and so have the same cooling effect as water extinguishers, putting the fire out by lowering the temperature. Secondly, they contain ‘Aqueous Film Forming Foam’ (this is why they are also known as AFFF foam extinguishers).
A foam based fire extinguisher does obstruct a fire by: Covering the burning surface and cutting off its oxygen supply. Separating the ignited object from the source of the flame and preventing a chain reaction. Cooling all …
People Also Ask how foam fire extinguisher works
How do foam extinguishers put out fires?
To understand how foam extinguishers put out fires, we need to know how fires burn in the first place. There are four elements to a burning flame: heat, fuel, air or oxygen, and a chemical chain reaction. Interfering with any of these elements can stop the fire.
How does a fire extinguisher work?
Foam fire extinguishers work in 2 ways. They are mainly water-based and so have the same cooling effect as water extinguishers, putting the fire out by lowering the temperature. They contain ‘Aqueous Film Forming Foam’ (this is why they are also known as AFFF foam extinguishers).
Is a foam fire extinguisher good for general use?
Summary: A foam fire extinguisher is a good for general use, suitable for the majority of business premises. What is a foam fire extinguisher used for?
How do I know if my fire extinguisher is foam?
How is a foam fire extinguisher identified? You can identify foam fire extinguishers by colour on them, foam fire extinguishers should have a red body and an agent-specific colour code band covering between 5-10% of the surface relating to the extinguisher’s contents, foam fire extinguishers feature a cream label.
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Fire Safety Training – How to Use a FOAM Fire Extinguisher Video Answer
Reference:
https://www.usfa.fema.gov/
https://en.wikipedia.org/wiki/Fire_extinguisher