Water, foam concentrate, and air.
examples of foam is whipped cream, marshmallows, sweetened gelatin and AFFF (aqueous film forming foam) used for extinguishing fires!!!
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AFFF is Aqueous Film Forming Foam
AFFF stands for Aqueous Film-Forming Foam. It is used by fire fighters for the suppression of a fire where fuel is involved. It does this by coating the fuel and preventing oxygen enabling combustion.
AFFF stands for Aqueous Film-Forming Foam. It is a type of firefighting foam used to suppress fires by creating a film on the fuel surface, preventing the release of flammable vapors. AFFF is commonly used for combating fires involving flammable liquids, such as gasoline or jet fuel.
I wouldn't agree that afff is good for fire fighting. Perhaps at one time it was, before there were more cost effective and environmentally friendly options on the market. There are now wetting agents such as Novacool UEF (Universal Extinguishing Foam) that are a much better option. This foam, which is UL listed and certified under NFPA 18, is used at 1/6 to 1/12 of the concentration of AFFF and is bio-degradable. AFFF is most effective in a contained pool of Class B flammables but is not effective on 3 dimensional fires where Novacool UEF is. AFFF is outdated technology and needs to be replaced by modern day technology.
The flow rate setting of AFFF (Aqueous Film Forming Foam) nozzles located in Engine Rooms typically depends on the specific system and fire protection requirements. It can range from 60 to 125 gallons per minute (GPM), but it is essential to consult the manufacturer's guidelines or the system design to determine the exact flow rate setting for the AFFF nozzles in Engine Rooms.
AFFF- Aqueous Film Forming Foam
3,300 gal water 500 gal AFFF 500 lbs PKP
examples of foam is whipped cream, marshmallows, sweetened gelatin and AFFF (aqueous film forming foam) used for extinguishing fires!!!
Because the Aqueous Film Forming Foam stops oxygen from reaching the fuel. Therefore removes the oxygen element from the fire triangle so a fire is not able to form.
"foam" fire extinguishers are made for hydrocarbon fires...i.e: gasoline, diesel, etc. These fires are considered class "b" (flammable liquids), and are mostly used by professionals and in commercial and industrial settings. These extinguishers are charged with anther AFFF, FFFP, or AR-AFFF, however, these class of extinguishers are only rated class A & B fires and are hazardous to the environment, humans and animals in addition to being very corrosive.
aqueous film forming foam (AFFF), if you have one, although CO2 or dry-chemical fire extinguishers are also rated for combustible liquids, such as diesel.
Using the American system for classification, here's the general type of extinguisher used:A (combustible materials) - water, AFFF (aqueous fire fighting film), dry chemicalB (flammable liquid or gas) - NEVER water. Dry chemical, AFFF, Halon, CO2C (electrical fires) - NEVER water. Dry chemical, Halon, CO2D (flammable metals) - NEVER water. Dry POWDER (not dry chemical) such as sodium chloride granules, graphite or copper.