IF-97 region


Specific enthalpy: J/kg

Specific entropy: J/(kg·K)

IF-97 region: 2


To process this page used the WSP function "wspWATERSTATEAREAHS": iF-97 region as function of specific enthalpy h [J/kg], specific entropy s [J/(kg·K)].

Function is based upon allocation of additional equations of the IAPWS Industrial Formulation 1997 for Thermodynamic Properties of Water and Steam and used in functions to determine the IF-97 region.


WSP is a registered trademark of Konstantin Orlov.

Copyright (c) Konstantin Orlov, 1999-2010.

Copyright (c) Konstantin A. Orlov, 1999-2010.