BRITISH STANDARD BS 5433:1976 Incorporating Amendment Nos. 1 and 2 Specification for Underground stopvalves for water services UDC 696.117:621.646.651 CONFIRMED DECEMBER 2007 BS 5433:1976 This British Standard, having been prepared under the direction of the Sanitary Appliances Standards Committee, was published under the authority of the Executive Board on 30 November 1976 ? BSI 08-1999