1. In April 16 2001 the program "WaterSteamPro" was received the certificate from GOSSTANDART OF RUSSIA (http://www.gost.ru). The registration number is "AK-35/4".
This certificate describes that WaterSteamPro functions reproduce the values from the standart reference data (GSSSD R-776-98) and the IAPWS Industrial Formulation 1997 for the Thermodynamic Properties of Water and Steam.
To see the scanned copy of this certificate please click image on the left.