International Association for the Properties of Water and Steam

International Association for the Properties of Water and Steam
Name	International Association for the Properties of Water and Steam
Abbreviation	IAPWS
Formation	1971
Type	Non-governmental organization
Headquarters	Not fixed; secretariat hosted by national members
Region served	Worldwide
Membership	National bodies, research institutes, industrial organizations

International Association for the Properties of Water and Steam is an international non-governmental organization focused on the formulation, evaluation, and dissemination of authoritative formulations for the thermophysical properties of water and steam. Founded to provide internationally agreed formulations used in research, engineering, and industry, the association cooperates with national laboratories, standards bodies, and international technical organizations.

History

The association was established during a period of coordinated international scientific activity that included organizations such as International Atomic Energy Agency, International Electrotechnical Commission, Organisation for Economic Co-operation and Development, United Nations Educational, Scientific and Cultural Organization, and International Union of Pure and Applied Physics; it drew early support from laboratories like National Institute of Standards and Technology, National Physical Laboratory (United Kingdom), Institut Laue-Langevin, and Battelle Memorial Institute. Founding meetings involved representatives from United Kingdom, United States, Germany, France, Japan, Soviet Union, Italy, Canada, Sweden, Netherlands, Switzerland, Belgium, Denmark, Norway, and Finland and aligned with initiatives by International Association for the Engineering Modelling, European Commission, and other technical forums. Over decades the association collaborated with agencies such as European Space Agency, NASA, National Oceanic and Atmospheric Administration, Deutsches Zentrum für Luft- und Raumfahrt, and universities including Massachusetts Institute of Technology, Imperial College London, ETH Zurich, University of Tokyo, and Tsinghua University to refine property formulations. Major milestones paralleled developments at institutions like CERN, Los Alamos National Laboratory, Lawrence Berkeley National Laboratory, Argonne National Laboratory, and standardization efforts by International Organization for Standardization and American Society of Mechanical Engineers.

Mission and Objectives

The association's mission echoes objectives of bodies such as World Meteorological Organization, International Energy Agency, International Renewable Energy Agency, International Hydropower Association, World Health Organization, and International Maritime Organization in providing reliable data for safety and efficiency; it aims to produce reference formulations used in codes by American Petroleum Institute, International Electrotechnical Commission, European Committee for Standardization, American Society of Civil Engineers, and Institute of Electrical and Electronics Engineers. Objectives include coordinating research with laboratories like Rutherford Appleton Laboratory, Paul Scherrer Institute, Max Planck Society, CERN, and Lawrence Livermore National Laboratory; validating models against experiments at sites such as Oak Ridge National Laboratory, Helmholtz Association, Synchrotron SOLEIL, and Diamond Light Source; and advising bodies like Intergovernmental Panel on Climate Change, International Organization for Standardization, World Bank, and United Nations Framework Convention on Climate Change.

Organizational Structure

Governance mirrors structures found in International Council for Science, International Union of Pure and Applied Chemistry, International Union of Pure and Applied Physics, and International Federation of Automatic Control, with an elected executive committee, technical committees, and national members including representatives from Japan, Germany, United Kingdom, United States, China, India, Russia, Brazil, Australia, South Africa, Argentina, Spain, Portugal, Poland, Czech Republic, Hungary, Romania, Greece, Turkey, and Israel. The association liaises with standards organizations like American National Standards Institute and British Standards Institution and with research consortia such as EUROSOLAR, CERN collaborations, and regional networks including Asia-Pacific Economic Cooperation and European Research Area. Leadership often includes experts affiliated with Princeton University, Columbia University, Stanford University, University of California, Berkeley, University of Cambridge, University of Oxford, Lehigh University, Technical University of Munich, Seoul National University, National Taiwan University, and University of São Paulo.

Technical Committees and Working Groups

Technical committees cover areas akin to committees at International Hydrological Programme, International Association for Hydraulic Research, and International Association of Hydrological Sciences: thermodynamic properties, transport properties, industrial applications, and uncertainty assessment. Working groups collaborate with laboratories such as National Research Council (Canada), China Academy of Sciences, Korea Institute of Science and Technology, CSIRO, Fraunhofer Society, and Polish Academy of Sciences to produce formulations and test methods. Committees engage with programs at European Space Agency, National Aeronautics and Space Administration, Defense Advanced Research Projects Agency, and European Organization for Nuclear Research for high-precision measurements, and with industrial partners like General Electric, Siemens, Mitsubishi Heavy Industries, ABB Group, Schneider Electric, Hitachi, Toshiba, Babcock & Wilcox, and Doosan for applied evaluations.

Publications and Standards

Outputs include internationally referenced formulations and technical reports analogous to publications by American Society of Mechanical Engineers, International Organization for Standardization, American Chemical Society, Royal Society of Chemistry, and American Institute of Physics. The association's releases influence standards adopted by International Organization for Standardization, American National Standards Institute, European Committee for Standardization, Japanese Industrial Standards Committee, and Standards Australia. Major formulations are used in software by firms such as ANSYS, Siemens PLM Software, COMSOL, Aspen Technology, and in modelling tools from EPCglobal, Schlumberger, and Honeywell.

Conferences and Workshops

Regular meetings, symposia, and workshops parallel events held by American Geophysical Union, European Geosciences Union, International Congress of Refrigeration, World Energy Congress, and International Conference on Heat Transfer; they convene at venues associated with UNESCO, Palais des Nations, Imperial College London, Massachusetts Institute of Technology, Tokyo Big Sight, Geneva, Paris, Berlin, Beijing, Seoul, Rio de Janeiro, Sydney, and Toronto. Collaborative sessions involve participants from World Bank, Asian Development Bank, Inter-American Development Bank, European Investment Bank, and national ministries from Germany, France, Japan, United States, China, and India.

Impact and Applications

Formulations and data disseminated by the association underpin design and safety in sectors represented by International Atomic Energy Agency, International Electrotechnical Commission, American Society of Mechanical Engineers, International Maritime Organization, World Health Organization, International Energy Agency, European Space Agency, NASA, Shell, ExxonMobil, Chevron, TotalEnergies, BP, Siemens Energy, GE Power, Mitsubishi Heavy Industries, and Toshiba Energy Systems. Applications range across thermal power plants, cryogenics, desalination, HVAC systems, geothermal projects, and high-pressure process engineering in companies and institutions like Doosan, Voith, Alstom, ArcelorMittal, BASF, Dow Chemical Company, DuPont, Bayer, GlaxoSmithKline, Pfizer, Nestlé, PepsiCo, Coca-Cola Company, Anheuser-Busch InBev, Procter & Gamble, Toyota, Volkswagen, Ford Motor Company, BMW, Daimler, Nissan, Hyundai, General Motors, Lockheed Martin, Boeing, Airbus, Siemens Healthineers, and academic research at Max Planck Institute for Chemistry, Scripps Institution of Oceanography, Woods Hole Oceanographic Institution, Lamont–Doherty Earth Observatory, and National Centre for Atmospheric Research.

Category:International scientific organizations