| abstract |
The invention relates to the use of a minimum boiling point azeotrope as an extinguishing agent as a replacement for bromofluorocarbons and chlorobromofluorocarbons. The azeotrope according to the invention is a mixture of 1,1,1,2-tetrafluoroethane and perfluoropropane. At normal boiling point (approximately -41.1degree C under 1.013 bar), its perfluoropropane content is approximately 76% by mass and that of 1,1,1,2-tetrafluoroethane is 24%. |