What is the ratio of AFFF to water for effective fire suppression?

The ratio of Aqueous Film Forming Foam (AFFF) to water is crucial for effective fire suppression, particularly for flammable liquid fires. The correct answer indicates a mixture of 6 parts AFFF to 94 parts water, which is ideal for creating a stable foam blanket that can smother fires and prevent re-ignition. This specific concentration maximizes the foam's ability to form a cohesive blanket over the burning surface, which cools the fuel and blocks oxygen, ultimately suppressing the flame.

Using this specific ratio ensures that the foam maintains its effectiveness without being too diluted, which could reduce its capability to adhere to liquid surfaces, especially in challenging fire situations. Thus, understanding the importance of maintaining the right proportions is essential for personnel involved in emergency response and firefighting operations. In practical applications, this ratio allows the AFFF to work efficiently, providing both fire extinguishment and protection for personnel and equipment.