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The International Association for the Properties of Water and Steam

IAPWS is an international non-profit association of national organizations concerned with the properties of water and steam, particularly thermophysical properties, cycle chemistry guidelines, and other aspects of high-temperature steam, water and aqueous mixtures relevant to thermal power cycles and other industrial and scientific applications. IAPWS objectives are

IAPWS is organized as an association of member countries (or groups of countries). An Executive Committee, consisting of the official representatives of all members, conducts the general business at an annual meeting. IAPWS is governed by a set of Statutes and Bylaws.

Interested individuals, whether or not they reside in a member country of IAPWS, are welcome to participate in the various IAPWS Working Groups.

Current Members are Britain and Ireland, Canada, the Czech Republic, Germany, Japan, Russia, Scandinavia (Denmark, Finland, Norway, Sweden), and the United States, plus Associate Members Argentina & Brazil, Australia, France, Greece, New Zealand, and Switzerland.

President: Dr. David Guzonas, Canadian Nuclear Laboratories, Chalk River, Ontario, Canada, e-mail: david.guzonas@cnl.ca
Executive Secretary: Dr. R. Barry Dooley, Structural Integrity Associates, Inc., Southport, Merseyside, UK, e-mail: bdooley@structint.com

If you have comments or suggestions about this website, email us at webmaster@iapws.org
For other IAPWS matters, contact the Executive Secretary

NOTE: We will try to answer any questions and requests, but only if they relate to the objectives of IAPWS listed above. In general, we are not equipped to answer requests for general information and materials for school science projects or homework assignments, process safety information, and information on government regulations.
Depending on the question, you might find the answer you are looking for either in our FAQs about Water and Steam or in our FAQs about IAPWS.

Disclaimer: This Website is made available through the facilities of the National Institute of Standards and Technology (NIST). However, the presentation of information on these pages does not necessarily connote NIST agreement with or endorsement of those items. Further, NIST does not endorse any commercial products that may be mentioned. Please address comments about this site to webmaster@iapws.org

This page updated July 6, 2015