Relevant British Standards for Unvented Hot Water Storage and Sanitary Appliances

BS EN 257: 2010 Mechanical thermostats for gas-burning appliances. BS EN 1111: 1999 Sanitary tapware. Thermostatic mixing valves (PN 10). General technical specification. BS EN 1287: 1999 Sanitary tapware. Low pressure thermostatic mixing valves. General technical specification. BS EN 1490: 2000 Building valves. Combined temperature and pressure relief valves. Tests and requirements. BS EN 1491: 2000 Building valves. Expansion valves. Tests and requirements. BS EN 1567: 1999 Building valves. Water pressure reducing valves and combination water reducing valves. Requirements and tests. BS EN 12897: 2006 Water supply. Specification for indirectly heated unvented (closed) storage water heaters. BS EN 13959: 2004 Anti-pollution check valves. DN 6 to DN 250 inclusive Family E type A, B, C and D. BS EN 15092: 2008 Building Valves. BS EN 60335-2-73: 2003+ A2: 2009 Household and similar electrical appliances. Safety. Particular requirements for fixed immersion heaters. BS 6144: 1990 Specification for expansion vessels using an internal diaphragm, for unvented hot water supply systems. BS 6283: Safety and control devices for use in hot water systems. Part 2: 1991 Specification for temperature relief valves for pressures from 1 bar to 10 bar. BS 6700: 2006+ A1: 2009 Design, installation, testing and maintenance of services supplying water for domestic use within buildings and their curtilages. Specification. BS 7291-1: 2006 Thermostatic pipes and fittings for hot and cold water for domestic purposes and heating installations in buildings. General requirements.