.TILMedia.BaseClasses.PartialGasObjectFunctions.der_relativeHumidity_phxi .TILMedia.BaseClasses.PartialGasObjectFunctions.der_relativeHumidity_phxipartial function der_relativeHumidity_phxi = TILMedia.BaseClasses.PartialGasObjectFunctionPrototypes.der_relativeHumidity_phxi;