Firefighting foam is a foam used for fire suppression. Its role is to cool the fire and to coat the fuel, preventing its contact with oxygen, thus achieving suppression of the combustion. Firefighting foam was invented by the Moldovan engineer and chemist Aleksandr Loran in 1902. [1]

May 25, 2023 · Learn about the differences between PFAS and fluorine-free firefighting foams, the harmful effects of PFAS, and what's being done about it. A new military specification requires firefighting foams to effectively extinguish class B hydrocarbon liquid fuel …

Apr 1, 2019 · There are many different types of foam for firefighting: Class A foam is used for combustibles, structural fires and wildfires; Class B foam is used for ignitable liquids, like gasoline and...

May 12, 2020 · Fire-fighting foam is made up of a mass of small bubbles of lower density than most flammable liquids and water. Foam is a blanketing and cooling agent produced by mixing air into a foam solution that contains water and foam concentrate.

Fire-fighting foam is a stable mass of small bubbles of lower density than most flammable liquids and water. Foam is a blanketing and cooling agent that is produced by mixing air into a foam solution that contains water and foam concentrate. Excludes air from the flammable vapors. Eliminates vapor release from fuel surface.

When firefighting foam is used on a fire, the foam blanket smothers the fire, removes oxygen, reduces heat, and creates a barrier that mitigates vapor release. In essence, foam acts as a versatile tool that tackles the components of the fire tetrahedron (oxygen, heat, fuel) from various angles, enabling more efficient fire suppression.

Jul 8, 2024 · Discover the different classes of firefighting foam and their applications. Learn how firefighting foam works and its effectiveness in combating fires.

Dec 3, 2019 · Fire-fighting foam acts in two phases, insluation and cooling. Insulation stops the airflow and prevents the combustible from evaporating, taking away the oxidising agent. Cooling removes or decreases the energy that combustion requires as the water in the bubbles decants and evaporates.

Jan 23, 2025 · The fire department also took temperature readings via wall- and ceiling-mounted thermocouples at one-foot increments. These tests showed that it took six minutes on average for water to bring down the temperature of a fire from 600°F to 200°F. Once foam was added, the same temperature reduction was achieved in one minute 45 seconds.

Feb 25, 2013 · Firefighters and officers can do their job more safely, effectively and efficiently by correctly matching the appropriate firefighting foam to their fire suppression needs. These fires types...