抄録
Surface of foam layer was easy to contaminate by petrol when foam stream was violently applied on the petrol surface. If the foam layer was contaminated by petrol, it was found that the heat resistance of foam was considerably deteriorated. A number of petrol products and crude oils were used to contaminate the foam layer, and experiments carried out for a number of different fire-fighting foams.
Consideration on the possibility of extinguishment of petrol fires by foams contaminated by petrols was given.
