BS 8542:2011 PDF

What is this standard about? With an increasing demand for water efficiency, a standardized framework will allow interested parties to estimate and report water consumption in a consistent way. This standard supplies such a framework with recommendations on how to calculate the volume of public mains water consumed for domestic use (i.e. WC flushing and other sanitary purposes, water used for drinking, and water used in food/drink preparation and washing up) in non-domestic buildings. Who is this standard for?

Designers Specifiers Building managers Water authorities Product manufacturers

Why should you use this standard? It gives recommendations for estimating the total water use from the building’s components, allowing consumption to be indicated on a whole building level against that of other buildings, thereby establishing best practice levels. It provides a framework for and details the development of water use calculation methodologies in non-domestic buildings. It provides recommendations for the quality of data used to calculate water use for each component in non-domestic buildings and also standardized reporting for product performance data. This standard applies to both new and existing buildings and covers: