- Author
- Hoshino, M.
- Title
- Extinguishing Performance of Fractionated Keratin Hydrolysates and of Various Petroleum-Fire Fighting Foams: Extinguishment of Gasoline Fires by the Plugging Application.
- Coporate
- Fire Research Institute, Tokyo, Japan
- Journal
- Bulletin of Japanese Association of Fire Science and Engineering, Vol. 42, No. 1, 13-19, 1994
- Keywords
- kertains | extinguishing | petroleum | fire fighting | extinguishment | gasoline | foam extinguishing systems | extinction time
- Abstract
- [ABSTRACT IN ENGLISH] Keratin hydrolysates by sodium hydroxide or calcium hydroxide and their fractions combined with Fe(II) or blended with fluorochemicals were used as foam extinguishants. It was proved that the above extinguishants were effective in extinguishing gasoline fires when applied into the central area of the fire by means of the plugging application. Fire extinguishing performance was evaluated using extinction time, fuel vapor sealability and burn-back resistance as yard sticks. It was found that fluoroprotein foam containing keratin hydrolysates by sodium hydroxide of 50,000 or less in fractionated molecular weight (FMW) was better than others in terms of extinction time, while protein foam containing a fraction of keratin hydrolysates by calcium hydroxide of 5,000 or above in FMW was the best of all in terms of both fuel vapor sealability and burnback resistance. Protein foam containing a fraction of keratin hydrolysates by both sodium and calcium hydroxides of 5,000 or less in FMW was not effective enough to control gasoline fires.