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Firefighting foam is a foam used for fire suppression. Its role is to cool the fire and to coat the fuel, preventing its contact with oxygen, thus achieving suppression of the combustion . Firefighting foam was invented by the Moldovan engineer and chemist Aleksandr Loran in 1902.
It requires the use of large quantities at costs both financial and physical. These costs are imposed on the firefighter and the community." (p. 5) The use of foam additives to water for extinguishment dates back to an English patent in 1877 for a method to produce chemical foam (Liebson, 1991, p. xi).
A short piece of fire hose, usually 10 to 20 feet (6.1 m) long, of large diameter, greater than 2.5 inches (64 mm) and as large as 6 inches (150 mm), used to move water from a fire hydrant to the fire engine, when the fire apparatus is parked close to the hydrant. Solid stream A fire-fighting water stream emitted from a smooth-bore nozzle.
Firefighting foam used in battling a fatal fire in an apartment building entered the public water system, prompting the water district to temporarily order thousands of residents not to drink the ...
After a fire on Great Western Road in Dennis Tuesday morning, residents in Harwich were placed under a “do not drink” order Wednesday.. Officials said firefighting foam used for the blaze ...
They also were used in firefighting foam, a material routinely used in fire training centers, airports and military bases. The material, known formally as aqueous film-forming foam, or AFFF, was ...
Purple-K, also known as PKP, is a dry-chemical fire suppression agent used in some dry chemical fire extinguishers. [1] It is the second most effective dry chemical in fighting class B (flammable liquid) fires after Monnex (potassium allophanate), and can be used against some energized electrical equipment fires (USA class C fires). [2]
In such cases, it is necessary to asphyxiate the fire. This can be done in a variety of ways. Chemical products which react with the fuel can be used to stop the combustion. A layer of water-based fire retardant foam can be applied by the fire hose in order to separate the oxygen in the air from the fuel.
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