AFFF stands for which type of foam?

AFFF stands for which type of foam?

• A. Aqueous Film Forming Foam
• B. Protein Foam
• C. Fluoroprotein Foam
• D. Film Forming Fluoroprotein Foam

Answer: (A)

AFFF is testing how foam acronyms describe both what the foam is made of and how it works. Aqueous Film Forming Foam means it’s a water-containing concentrate that spreads a thin, protective film over hydrocarbon fuels. That film helps prevent the fuel from releasing flammable vapors and speeds cooling and knockdown of the fire. The other options refer to different foam chemistries—protein foams are protein-based, fluoroprotein foams add fluorinated agents, and film-forming fluoroprotein foams are hybrids. None of those carry the “Aqueous” designation in the acronym, so the best match for AFFF is Aqueous Film Forming Foam.

AFFF is testing how foam acronyms describe both what the foam is made of and how it works. Aqueous Film Forming Foam means it’s a water-containing concentrate that spreads a thin, protective film over hydrocarbon fuels. That film helps prevent the fuel from releasing flammable vapors and speeds cooling and knockdown of the fire. The other options refer to different foam chemistries—protein foams are protein-based, fluoroprotein foams add fluorinated agents, and film-forming fluoroprotein foams are hybrids. None of those carry the “Aqueous” designation in the acronym, so the best match for AFFF is Aqueous Film Forming Foam.