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The British and Irish Association for the Properties of Water and Steam (BIAPWS) is a non-profit organisation that focuses on the thermophysical and chemical properties of water and steam, particularly for industrial applications in water chemistry and treatment in the energy sector and related industries.

As the only independent representative body and forum for Power Plant Chemistry in the UK and Ireland, we bring together electricity generators (fossil, biomass, nuclear and EfW), steam generators and users, and providers of water treatment, analytical equipment and chemistry services.

BIAPWS are a national subcommittee of the International Association for the Properties of Water and Steam (IAPWS) and promote and advance knowledge, research and best practice in cycle chemistry, water treatment, environmental management and health & safety.

We take an active role in establishing and improving internationally respected guidance in these fields, and are represented on international standardisation committees including the British Standards Institute and Euro Norm working groups.

We serve as a forum for information and knowledge exchange between our members with a view to improve cycle chemistry, water treatment and environmental management.

We promote best practice in our field through membership meetings, online webinars and an annual BIAWPS Symposium.