Create the liquid and vapor phase materials as described in the dry RGP section. .rgp files can only be used for liquid-vapor phase change calculations.

When creating the homogeneous binary mixture, select the two materials that make up the mixture in the Material1 and Material2 fields. The thermodynamic states must be Liquid-Gas. Under Saturation Properties, set the Option to Table and provide the table name (which will be the same as the table for the two components already referenced). The Component Name is a required field, because .rgp files can hold data for more than one pure substance. The saturation date must exist in the .rgp file.