International Equations for the Saturation Properties of Ordinary Water Substance

Consistent with the latest experimental data and the recent internationally recommended values for the critical parameters, we have developed compact and accurate representative equations for the following properties on the saturation line of ordinary (light) water substance: vapor pressure, density, enthalpy and entropy of both the saturated liquid and the saturated vapor. These equations form the basis of a ‘‘Supplementary Release on Saturation Properties of Ordinary Water Substance’’ issued by the International Association for the Properties of Steam (IAPS).