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Foam
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- DVD (VHS avail.)
Comprehensive treatment of foams for HazMat control and fighting Class B fires.
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Water has traditionally been used to fight fires because it is readily available and has great heat-absorbing capability. However, Class B fires, fires which involve flammable or combustible liquids, cannot be extinguished by water alone. Fire protection professionals have developed firefighting foams for use on Class A and Class B fires. Foam can be used to extinguish fire, prevent ignition at flammable or combustible liquid spills, control vapors at hazardous materials spills, and fight some fires. To be effective, it is important that foam be prepared and applied correctly.
“Foam” is designed to teach emergency responders what they need to know in order to select, prepare, and apply foam to Class A or B fires or hazardous materials spills. This program objectively studies all of the basic foam concentrates currently on the market, including Fluoroprotein (FP), AFFF, AR-AFFF, FFFP, high expansion, and Class A foams and discusses the special properties and drawbacks of each. The program emphasizes the value of preincident planning, tells how to analyze a site to determine what type and quantity of foam concentrates to keep available, discusses foam compatibility, and covers other factors to be considered in planning an emergency response. Specific information is provided on preparing and delivering foam, including demonstrations that portray proportioning to achieve the right mix of water/concentrate and to apply foam effectively. Nozzles, hoselines, foam vehicles and other equipment used in foam preparation and delivery are also discussed. “Foam” tells how to calculate exactly how much foam concentrate and water must be available to attack spill fires and tank fires. Other topics covered include sizing up an incident scene, using cooling water to protect exposures, protecting the integrity of the foam blanket, eliminating the source of the leak, fighting tank fires, and the special hazards of chemical spills. 30 minutes.
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