Cross References:BS 4800:1989BS 6700:2006BS 7592BS 7671BS EN 12056-3BS EN 12056-4BS EN 13564 BS 1710BS 6739BS 6920BS 7291-2BS 7291-3BS 31100BS EN 124BS EN 752:2008 BS EN 1057BS EN 1085BS EN 1717BS EN 10143BS EN 10216-5BS EN 10217-7BS EN 13076 BS EN 13077BS EN ISO 5667-1BS EN ISO 5667-3 BS EN ISO 19458DIN 1989-1Private Water Supplies Regulations 1991Workplace (Health, Safety and Welfare) Regulations 1992Confined Spaces Regulations 1997 Work at Height Regulations 2005Private Water Supplies (Scotland) Regulations 2006Water Supply (Water Fittings) Regulations 1999Water Byelaws 2004 (Scotland) Water Regulations (Northern Ireland) 1991Water Industry Act 1991Water (Scotland) Act 1980The Water and Sewerage Services (Northern Ireland) Order 2006HSE L8:2000