WaterSteamPro - is registered program and trademark of Moscow Power Engineering Institute (Technical University).

Mathcad - is registered trademark of MathSoft, Inc.

Microsoft, Microsoft Windows, Microsoft Visual Basic, Microsoft Visual Studio, Microsoft Visual C++, Microsoft Office, Visual Basic for Applications (VBA), Microsoft Excel - are registered trademarks of Microsoft Corp. Windows NT - is a trademark of Microsoft Corp.

Delphi - is registered trademark of Borland, Inc.

Other brand and product names are trademarks or registered trademarks of their respective owners.

Section "Structure and Regions of IAPWS-IF97" based upon book: A.A. Alexandrov, B.A. Grigoriev - Tables for thermalphysics properties of water and steam. Reference book. - Moscow.: MPEI, 1999. - 168 pages.