When using foam to extinguish a fire, the separating method:

The separating method in foam extinguishment is centered around the principle of creating a barrier between the fuel and the fire. By forming this barrier, the foam effectively prevents the fire from accessing the combustible materials, thus interrupting the combustion process. This method is crucial in applications such as flammable liquid fires, where simply cooling the fuel or reducing air supply may not be sufficient on its own.

The foam’s blanket works not only to smother the flames but also to inhibit the release of flammable vapors from the fuel, further reducing the risk of re-ignition. This ability to separate the fuel from the fire makes the separating method particularly effective in fire suppression strategies for flammable liquids.