Vapor-liquid equilibria and liquid densities were obtained using a static apparatus fitted with a variable- cell which was described in detail by Valtz et al. (1). Results are given at four temperatures for the binary systems butane-1,1,2-trichlorotrifluoroethane, pentane-1,2-dichloro-1,1,2,2-tetrafluoroe hexane-1,2-dichloro-1,1,2,2-tetrafluoroethane, heptane-1,1,2-trichloro-1,2,2-trifluoroethane, heptane-1,2-dichloro-1,1,2,2-tetrafluoroethane, and benzene-1,2-dichloro-1,1,2,2-tetrafluoroethane and the ternary system 1,2-dichloro-1,l, 2,2-tetrafluoroethane-1,1,2-trichloro-1,2,2-trifluoroethane-heptane. The best simultaneous representation of pressures and saturated liquid molar volumes at a given temperature and liquid composition for these mixtures is obtained using either the Patel-Teja or Trebble-Bishnoi-Salim equation of state (TBS EOS) in either their standard or generalized form (maximum deviation 0.7% in pressure and 3.1% in saturated liquid molar volume with the TBS EOS).