.TILMedia.BaseClasses.PartialVLEFluidObjectFunctions.isothermalCompressibility_phxi .TILMedia.BaseClasses.PartialVLEFluidObjectFunctions.isothermalCompressibility_phxipartial function isothermalCompressibility_phxi = TILMedia.BaseClasses.PartialVLEFluidObjectFunctionPrototypes.isothermalCompressibility_phxi;