Extinguishing Abilities of Different Fire-Fighting Foams Applied Individually or Together on Petroleum Fires

Abstract

In practical fire fighting situations, there is a possibility that different foams will be applied to a tank fire in sequence or simultaneously by a fire brigade.
This report was to ascertain the compatibility of two different foams or a single foam when applied to gasoline fires simultaneously through two nozzles by plunging application or gentle surface application.
Comparative performance was judged by extinction time, fuel vapor sealability and burnback resistance of the foams.
When applied by plunging application, synthetic detergent foam greatly reduced the extinction time, fuel vapor sealability and burnback resistance compared to protein foam, fluoroprotein foam or fluorochemical foam (Light Water) used alone.
Protein foam was compatible with Light Water, when applied by plunging and gentle application.