.TILMedia.BaseClasses.PartialVLEFluidFunctions.isothermalCompressibility_psxi .TILMedia.BaseClasses.PartialVLEFluidFunctions.isothermalCompressibility_psxipartial function isothermalCompressibility_psxi = TILMedia.BaseClasses.PartialVLEFluidFunctionPrototypes.isothermalCompressibility_psxi;