A fire extinguisher foam is a low-density fluid made up of small air-filled water bubbles. Essentially, it has three ingredients mixed in specific proportions: water, foam, and air. Essentially, it has three ingredients mixed in …
FOAM: A fire fighting foam is simply a stable mass of small air-filled bubbles, which have a lower density than oil, gasoline or water. Foam is made up of three ingredients – water, foam concentrate and air. When mixed in the correct proportions, these three ingredients form a homogeneous foam blanket. Click to see full answer.
Foam fire extinguishers – colours and uses explained
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).
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 about how to use a fire …
People Also Ask what’s the foam in a fire extinguisher called
What type of fire can a foam extinguisher be used on?
Foam fire extinguishers are suitable for use on class A solid combustible fires (wood, paper, textiles) and class B flammable liquid fires (petrol, diesel, paint, solvents). How does foam fire extinguishers work?
How do foam-based fire extinguishers work?
Usually, foam-based fire extinguishers are most suited to putting out liquid fires like gasoline or diesel. They do so by sealing the liquid surface to prevent the vapors from spreading. Alternatively, they can be used to extinguish solid-based fires such as those caused by wood or paper as well.
What is the difference between wet and foam fire extinguishers?
Foam extinguishers carry a cream-colored label, whereas wet chemical and water mist fire extinguishers may have labels of yellow and white colors, respectively. For decades, foam has been used to extinguish fires from flammable or combustible liquids. Looking for great deals on fire extinguishers?
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