Afff Extinguisher AFFF, Fire Extinguisher, What Does It Stand For?

AFFF, Fire extinguisher, what does it stand for? - afff extinguisher

The formation of AFFF - Aqueous film.

In the 1960s, the U.S. Navy has a call for AFFF fire, short of aqueous film forming foam are developed.
This foam is of low viscosity, the rapid spread over the surface of most hydrocarbons.
It forms a film of water into the bubbles of foam that cools the fuel and prevent the formation of flammable vapors and a dramatic reduction in the fire, an important factor in the rescue of accident or fire.

The aqueous film foam (AFFF) are foams often contain water, sodium alkyl sulfate and / or telomeres as perfluorinated surfactants.
You have the ability to spread over the surface of the liquid hydrocarbons.
Alcohol-resistant aqueous film forming foam (AFFF-AR) foams are resistant to the action of the alcohols may have a protective film, including his presence.

AFFF is better for the release of aviation fuel.

Low expansion foams are foams with the expansion of less than 20 times accessed. < br> Foams with expansion ratio between 20-200 are medium-term expansion.
Low expansion foams, for example. AFFF are low viscosity, mobile, can quickly give large coverage areas.