(ZA9207775-A)      Mixt. comprises 25-65 by wt.% of 1.1.1 trifluoroethane, 1-70% perfluoropropane, and 5-34% of propane having low b.pts.    Mixt. contg. 35-59 by wt. of 1.1.1 trifluoroethane, 10-53% of perfluoro-propane, and 12-31% of propane are pref., in particular, 48% of 1.1.1 trifluoroethane, 30% perfluoropropane and 22% of propane, which gives an azeotropic mixt. of b.pt. -54.7 deg.C at 1.013 bar.    USE/ADVANTAGE -   Azeotropic mixts. may be made for use as refrigerants, as polymer foaming agents, and as aerosol propellants. The compsns. have improved environmental properti    (FR2682395-A1)      Mixt. comprises 25-65 by wt.% of 1.1.1 trifluoroethane, 1-70% perfluoropropane, and 5-34% of propane having low b.pts.    Mixt. contg. 35-59 by wt. of 1.1.1 trifluoroethane, 10-53% of perfluoro-propane, and 12-31% of propane are pref., in particular, 48% of 1.1.1 trifluoroethane, 30% perfluoropropane and 22% of propane, which gives an azeotropic mixt. of b.pt. -54.7 deg.C at 1.013 bar.    USE/ADVANTAGE -   Azeotropic mixts. may be made for use as refrigerants, as polymer foaming agents, and as aerosol propellants. The compsns. have improved environmental properties    (JP95112990-B2)      Mixt. comprises 25-65 by wt.% of 1.1.1 trifluoroethane, 1-70% perfluoropropane, and 5-34% of propane having low b.pts.    Mixt. contg. 35-59 by wt. of 1.1.1 trifluoroethane, 10-53% of perfluoro-propane, and 12-31% of propane are pref., in particular, 48% of 1.1.1 trifluoroethane, 30% perfluoropropane and 22% of propane, which gives an azeotropic mixt. of b.pt. -54.7 deg.C at 1.013 bar.    USE/ADVANTAGE -   Azeotropic mixts. may be made for use as refrigerants, as polymer foaming agents, and as aerosol propellants. The compsns. have improved environmental properties.    (US5474695-A)      Mixt. consisting essentially of, on a mass basis, about 35 to 59% of 1,1,1-trifluoroethane, about 10 to 53% of perfluoropropane and about 12 to 31% of propane, the mixt. having a min. boiling point of about -54.7 C. at 1.013 bar.    (EP537045-B1)      Mixture containing, on a mass basis, 25 to 65% of 1,1,1-trifluoroethane, 1 to 70% of perfluoropropane and 5 to 34% of propane.