| 摘要 |
PURPOSE:To obtain a working fluid which does not affect the ozonosphere and has an improved coefficient of performance by mixing pentafluoroethane, trifluoroethane, and tetrafluoroethane. CONSTITUTION:At most 85wt.% pentafluoroethane is mixed with at most 80wt.% trifluoroethane and 15-45wt.% tetrafluoroethane. |
