Isothermal Vapor-Liquid Equilibrium Data for the 1,1,2,2-Tetrafluoroethene + 1,1,2,3,3,3-Hexafluoroprop-1-ene Binary System: Measurement and Modeling from (248 to 283) K Conradie, F.J.; Crouse, P.L.; Courtial, X.; Nelson, W.M.; van der Walt, I.J.; Ramjugernath, D.; Journal of Chemical & Engineering Data 2014, 59, 82-88