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In the early 1970s, National Foam, Inc. invented alcohol-resistant AFFF technology. AR-AFFF is a synthetic foam developed for both hydrocarbon and polar-solvent materials. Polar solvents are combustible liquids that destroy conventional fire-fighting foam.
AFFF was developed in the 1960s under Project Light Water in a joint venture between 3M and the U.S. Navy. AFFF forms a film that floats out before the foam blanket, sealing the surface and smothering the fire by excluding oxygen. AFFF is widely used for ARFF firefighting at airports, often in conjunction with purple-K dry chemical.
1941: Polyester is invented by John Rex Whinfield and James Dickson. [477] 1942: The V-2 rocket, the world's first long range ballistic missile, developed by engineer Wernher von Braun. 1944: The non-infectious viral vaccine is perfected by Dr. Jonas Salk and Thomas Francis. [478]
AFFF may refer to : Film festivals. Asian Festival of First Films, a former film festival held in Singapore; Imagine Film Festival, formerly Amsterdam Fantastic ...
Immediately after 3M chose to no longer manufacture PFOS in 2000, the company deployed Schaefer to develop a replacement for the Aqueous Film Forming Foams (AFFF). By 2002, Shaefer, who had worked for years on "foams used to put out forest fires", developed a fluorine-free foam that was able to put out jet fuel fires within 46 seconds.
Display of inductees in the National Inventors Hall of Fame in Alexandria. The National Inventors Hall of Fame is an American not-for-profit organization, founded in 1973, which recognizes individual engineers and inventors who hold a U.S. patent of significant technology.
The Greatest American Inventions of the Past 50+ Years. Andrew Lisa. June 27, 2022 at 4:00 AM ... Apple, IBM, Steve Jobs, and Bill Gates are all household names in the tech world these days, ...
The United States Environmental Protection Agency defines PFAS in the Drinking Water Contaminant Candidate List 5 as substances that contain "at least one of the following three structures: R−CF 2 −CF(R')R", where both the −CF 2 − and −CF− moieties are saturated carbons, and none of the R groups can be hydrogen; R−CF 2 −O−CF 2 ...