What is the capacity of the containers used for AFFF foam concentrate?

The capacity of the containers used for AFFF (Aqueous Film Forming Foam) concentrate is often standardized at 5 gallons. This size is practical for fire departments, making it easy to transport and handle during emergencies. It strikes a balance between being sufficiently capacious to provide adequate foam for effective firefighting while still being manageable and portable. Larger containers may be more cumbersome to use in dynamic situations, which is why the 5-gallon size is commonly preferred. This standardization ensures that firefighters can rely on a consistent amount of foam concentrate when responding to incidents, allowing for proportional calculations when mixing with water for foam application.