Aqueous Film Forming Foam (AFFF)
Aqueous Film Forming Foam, also known as AFFF, is a specialised firefighting foam used to combat liquid fires. AFFF is particularly used in fires involving flammable liquids such as fuels, solvents, and other liquid combustibles. This foam forms an aqueous film on the surface of the burning liquid, preventing oxygen from reaching it and thereby smothering the fire.
Properties and Advantages of AFFF
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Rapid extinguishing action: AFFF quickly forms a film over the burning surface, smothering the fire and preventing re-ignition.
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Effective cooling: The water-based film cools both the burning liquid and the surrounding area, aiding fire suppression.
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Versatile application: AFFF can be used on various types of liquid fires, including polar fuels and hydrocarbons.
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Long shelf life: AFFF solutions are stable over time and can be stored in large quantities without losing effectiveness.
Use of AFFF
AFFF is used in a variety of sectors:
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Fire services: For tackling fuel fires and other flammable liquid incidents, particularly in vehicle accidents and fuel storage areas.
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Industry: Used in chemical plants, refineries, and facilities where large volumes of flammable liquids are handled.
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Military: Deployed on aircraft carriers, in military vehicles, and in situations where aviation fuel fires pose a risk.
Safety and Environmental Considerations
When using AFFF, appropriate safety precautions should be taken to protect personnel and the environment. This includes the use of protective gear such as gloves and respirators. Environmentally, AFFF should be disposed of correctly, and efforts should be made to use environmentally safer alternatives where possible.
Additional Information
Further details about AFFF and its applications can be found on specialised websites and in professional literature.
Conclusion
AFFF is a versatile and effective firefighting foam specifically developed for liquid fires. It offers many benefits such as rapid action, cooling effect, and broad applicability, playing a vital role in fire suppression across various sectors.