.TILMedia.BaseClasses.PartialVLEFluidObjectFunctions.isothermalCompressibility_psxi .TILMedia.BaseClasses.PartialVLEFluidObjectFunctions.isothermalCompressibility_psxipartial function isothermalCompressibility_psxi = TILMedia.BaseClasses.PartialVLEFluidObjectFunctionPrototypes.isothermalCompressibility_psxi;