.TILMedia.Internals.VLEFluidConfigurations.PureComponentVLEFluid.SplineInterpolation.InternalFunctions.meanDensity_phAhB .TILMedia.Internals.VLEFluidConfigurations.PureComponentVLEFluid.SplineInterpolation.InternalFunctions.meanDensity_phAhBfunction meanDensity_phAhB = TILMedia.Internals.VLEFluidObjectFunctions.PureComponentDerivatives.meanDensity_phAhB;