Everything You Need to Know About AFFF Firefighting Foam
Everything You Need to Know About AFFF Firefighting Foam
Blog Article
AFFF represents “aqueous film-forming foam.” It's a form of Firefighting Foam that's most commonly used by firefighters to extinguish Class B and Class A fires. Class B fires are the ones that involve flammable liquids, such as gasoline, oil, or paint, while Class A fires are the ones that involve combustible materials, such as wood or paper.
AFFF works by forming a slim layer of water on the surface of the burning liquid, which effectively smothers the fire and prevents it from spreading. Additionally, AFFF contains surfactants—substances that reduce the top tension of water—which help the water to spread more easily and evenly over the outer lining of the liquid.
How AFFF Works
● Aqueous film-forming foam (AFFF) is a type of firefighting foam that's most commonly utilized by firefighters to extinguish Class B and Class A fires. Class A fires are the ones that involve combustible materials like wood or paper, while Class B fires involve flammable liquids like paint, oil, or gasoline.
● To understand how AFFF works, it's first very important to understand how fire works. Each time a fire burns, it does so because three elements are present: oxygen, heat, and fuel. The oxygen provides the air essential for combustion, while the warmth causes the fuel to ignite. Once ignited, the fuel begins to burn, releasing energy in the form of heat and light.
● If one of these brilliant three elements is removed, the fire will go out. That is where AFFF comes in. When placed on a fire, AFFF forms a slim layer of water on the surface of the burning liquid. This effectively smothers the fire and prevents it from spreading. Surfactants, which lower water's surface tension, are another ingredient in AFFF. They allow it to be easier and more uniform for water to spread across a liquid's surface.
● Surfactants are specially important when fighting fires involving liquids with high surface tensions, such as for instance diesel fuel or crude oil. Without surfactants, these kinds of liquids would repel water, making it problematic for firefighters to extinguish them.
AFFF Firefighting Foam Lawsuit
AFFF Firefighting foam lawsuit is a class action lawsuit that has been filed in the United States District Court for the District of South Carolina. This system has been used by the U.S. Military, in addition to many fire departments over the country.
● The primary allegations in the lawsuit are that the businesses knew or should have known that the chemicals in AFFF firefighting foam were dangerous and caused health conditions, nevertheless they didn't warn the general public or take steps to get rid of the chemicals from the product.
● The chemicals at issue, in this case, are perfluorooctane sulfonate (PFOS) and perfluorooctanoic acid (PFOA).
● These chemicals have now been associated with cancer, along with, other health problems. The plaintiffs, in this case, are seeking compensatory and punitive damages. They're also seeking to really have the companies remove these chemicals from AFFF firefighting foam and other products.
Conclusion:
Aqueous film-forming foam (AFFF) is a significant tool in the fight fires. By forming a thin layer of water on top of burning liquids, it effectively smothers flames and prevents them from spreading. Additionally, its surfactant content helps water to spread more evenly over surfaces with high surface tensions.
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