Calculates the rmodynamic and transport properties of industrially-important fluids and their mixtures. These properties can be displayed in tables and plots through the graphical user interface they are also accessible through spreadsheets or user-written applications accessing the REFPROP DLL or the FORTRAN property subroutines.-Calculates the thermodynamic and transport properties of industrially-important fluids and their mixtures. These properties can be displayed in tables and plots through the graphical user interface　they are also accessible through spreadsheets or user-written applications accessing the REFPROP DLL or the FORTRAN property subroutines.