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Hand-held foam extinguishers used the same two chemicals in solution. To actuate the extinguisher, a seal was broken and the unit inverted, allowing the liquids to mix and react. Chemical foam is a stable solution of small bubbles containing carbon dioxide with lower density than oil or water, and exhibits persistence for covering flat surfaces ...
Dry chemical tank capacities range from 450 to 3,000 pounds (200 to 1,360 kg). AFFF solution capacity ranges from 50 to 250 US gallons (190 to 950 L). Dry chemical flow rates vary from 5 to 8 pounds (2.3 to 3.6 kg) per second and 35 to 60 US gallons (130 to 230 L) per minute for the foam for handline application [citation needed].
The Kidde FA110 is an even smaller secondary fire extinguisher that packs 2.5 pounds of chemical agent into a container small enough to wedge beneath front seat or the back of the trunk.
A fire extinguisher is a handheld active fire protection device usually filled with a dry or wet chemical used to extinguish or control small fires, often in emergencies.
Air pressurized water (APW) fire extinguishers are commonly converted into makeshift CAFS extinguishers by drilling two 1/8-1/16 inch holes in the pickup tube above the water line. 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 ...
However, a fire extinguisher is only as effective as its accessibility when disaster strikes. If a fire extinguisher is nowhere to be found when a fire starts, it’s as if you don’t have one at ...
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