Developed by Russian National Committee (RNC) of
International Association for the Properties of Water and Steam (IAPWS).
This calculation page is based on the
"Revised Supplementary Release on Properties of Liquid Water at 0.1 MPa" 
provided by IAPWS.
Detailed information about used equations, constants, range of validity etc is presented in PDF version of IAPWS Release which can be downloaded from IAPWS web site www.iapws.org