What describes an AFFF fire extinguisher?

Aqueous Film Forming Foams (AFFF) is perfect for tackling any sudden fire as they look to starve the flames of oxygen by covering them in an effective layer of foam. The fire is then cooled as the evaporation process takes place. AFFF is environment friendly and no harmful residue remains after use.

How do AFFF fire extinguishers work?

How Does AFFF Work? … When applied to a hazard, AFFF produces an aqueous film that spreads across the surface of the fire to extinguish the flame. This film is what gives AFFF its name, and it works by suppressing flammable liquid vapor, effectively suffocating the fire hazard.

What is Afff and what type of fire can it be use?

Water-Type Fire Extinguishers contain Water and/or Water-based agents, such as Aqueous Film-Forming Foam (AFFF), Film-Forming Fluoroprotein Foam (FFFP), and Antifreeze. … An AFFF Foam fire extinguisher is effective on Class A and Class B fires. It can be applied to Class B liquid spills to prevent ignition.

What kind of foam is Afff?

Class B Foam (also called AFFF): Used to extinguish Class B materials, which include gasoline, oil, and jet fuel.

What are the six main types of fire extinguishers?

The eight different types of fire extinguishers include specialist dry powder, standard dry powder, foam, water spray, water mist, water spray, wet chemical and carbon dioxide. There is no single fire extinguisher that can be used on all classes of fire.

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Which foam is used in fire extinguisher?

AFFF (Aqueous Film Forming Foams) Foam Fire Extinguishers are suitable to fight burning solids such as wood as well as liquid fires such as burning petrol. The foam has the ability to creep over the burning liquid or to soak into burning materials such as settees.

How does ventilation impact fire?

Fire ventilation means that fire gases must be vented out, but also that fresh air will flow in (generally). This supply of air normally affects the fire in such a way that the rate of heat release from the fire increases or the fire spreads faster.

Are all foam fire extinguishers AFFF?

Foam (AFFF – Aqueous Film Forming Foam) Fire Extinguishers are suitable for use on Class A (wood, paper, material & cloth) Fires & Class B (Flammable liquids: spirits, diesel, petrol etc.) … This Dual Class A & B rating makes Foam (AFFF) Fire extinguishers ideal for any office environment.

Fire safety