Also known as: • AFFF foam fire extinguishers. • AFFF fire extinguishers. • Spray foam fire extinguishers. • CREAM coloured label printed on the body stating ‘Foam’. • Should be identified by an extinguisher ID sign fixed nearby – ‘Foam Extinguisher’.
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 …
What are Foam Fire Extinguishers Used for?
As the foam is sprayed onto the fire, it extinguishes the fire in two ways, 1) it cools the fire, and 2) it smothers the fire, effectively sealing up the fire which …
Foam fire extinguishers are one of the most common types of fire extinguisher, and are generally used for fires involving flammable solids and liquids. Foam fire extinguishers create a cooling blanket effect, smothering burning materials and preventing re-ignition. It is not for use on chip pan fires unless they are described specifically as class F extinguishers.
People Also Ask what do foam fire extinguishers do
How do foam fire extinguishers work?
How foam fire 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).
Is the foam in a fire extinguisher toxic?
No, the foam from the fire extinguisher contains aqueous film forming foam (AFFF) and is considered non-poisonous and non-toxic to humans or the environment. Additionally, the foam solution is non-damaging to most materials, the exception being electrical appliances or equipment.
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 identify a foam fire extinguisher?
How to identify a foam fire extinguisher: • CREAM coloured label printed on the body stating ‘Foam’ • Should be identified by an extinguisher ID sign fixed nearby – ‘Foam Extinguisher’ Sizes of foam fire extinguisher available:
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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