Class A foam is used to repel a type of fire known as class A fire. Class A foam is a carbon-loving solution that can sock into a solid. Additionally, after soaking into the solid which is also combustible, it breaks down the surface tension of water used during that process (Roberts, 2010). The importance of breaking down the surface is that it helps to reduce the fire force and stop rekindles of the burning material. An example of an organization that uses Class A foam is the Municipal Department to put off the burning fire in various areas (Jakubowski, 2008). Nevertheless, the application of Class A foam does not require a lot of techniques as it attacks fire using both direct and indirect methods. Apart from that, Class A foam is usable in vegetation places because it is green-friendly (Jakubowski, 2008). On the other hand, Class B extinguishes Class B fires where it deters carbon when mixed with water. When Class B mixes with water, it creates a film that shields the burning liquid (Roberts, 2010). After it has covered up the flammable vapors, it seals the flammable vapors. Further, Class B suppresses and stops the fire from spreading all over (Roberts, 2010). Class B foam is used by fire refineries and other tank farms so make sure that they understand the technique of its uses (Jakubowski, 2008). Moreover, the class B method needs a well-organized stream that can help stop the flaming liquid from escaping (Roberts, 2010). Consequently, departments can reduce the environmental dangers associated with Class B by using compressed air foam systems which reduce flaming liquid runoff (Jakubowski, 2008).
References
Jackubowski, G. (2008). The AS (& some BS) of Foam fire fighting. FIRERESCUE . Retrieved on 1 May 2017 from http://www.firerescuemagazine.com/articles/print/volume-3/issue-3/firefighting-operations/the-as-some-bs-of-foam-firefighting.html.
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Roberts, Geary. (2010). Class A and B: What you need to Know about Foam. Fire Apparatus & Emergency Equipment . Retrieved on 1 May 2017 from http:/ww.fireapparatusmagazines.-com/articls/print/volume-15/issue-4/features/class-a-and-b-what-you-need-to-kmnow-about-foam-html.
