What is the term for raw liquid foam that is stored until mixed with water and air?

The correct term for raw liquid foam that is stored until mixed with water and air is foam concentrate. Foam concentrate is the concentrated form of the foam that, when combined with water and air, produces the foam blanket used for fire suppression, particularly in aviation fire scenarios. This concentrate is specifically formulated to create a stable and effective foam when diluted properly, ensuring that it adheres to burning surfaces and effectively smothers flames.

Understanding the distinction is vital in ARFF operations because the suitability of foam for specific situations relies heavily on its concentration and proper application. While foam agent refers to a broader category of substances that include various agents used to create foam, it doesn't specifically denote the storage form before dilution. Other terms such as foam liquid and foam solution pertain to either the raw material's physical state or the final product after mixing, but do not accurately capture the specific type of concentrate used in fire suppression scenarios.