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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. [1] The surfactants used must produce foam in concentrations of ...
The unit is then filled with 1.5 US gallons (5.7 L) of water and class A foam, AFFF, FFFP or commercial detergent is added to the water in a 1% ratio for class A fires and a 3%-6% ratio for class B fires. Typically, the tip of the smooth-bore application nozzle is then cut off to allow the foam to properly expand.
Foam depopulation or foaming is a means of mass killing farm animals by spraying foam over a large area to obstruct breathing and ultimately cause suffocation. [1] It is usually used to attempt to stop disease spread. [2] Foaming has also been used to kill farm animals after backlogs in slaughtering occurred during the COVID-19 pandemic. [3]
(Attack line) A use classification of a fire fighting hose connected to output of a pump or other pressure source (e.g., gravity). Fire hose used to apply water or other fire fighting agent directly to a fire or burning substance. Typically of 2 + 1 ⁄ 2 inches (64 mm) diameter or less in the United States. Historically 1.5 inch hose was the ...
As of 2022, Phos-Chek LC-95A is the most used fire retardant in the world. [8] A Phos-Chek tank trailer at Ramona Airport. Phos-Chek is produced in several colors, [9] including off-white, [10] red iron oxide, [11] and a fugitive mixture that is red when dispersed but gradually fades to an earth-tone when exposed to sunlight. [11]
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In pressurized gas fires the foam is applied to extinguish the fuel fires around the blowout and cool heated metal. The Purple-K stream is then discharged into the blowout to "snuff" it out. These systems can be mounted on vehicles, skid mounts or installed as permanent stations. Application is from twin hose lines connected together at the ...
Eucalyptus oil is commonly used for steam inhalation as it relieves inflammation and helps clear phlegm. However, it can be overwhelming to some, and can cause sinus and skin irritation.