BS 4346-1:1969(1999) Specification for Joints and fittings for use with unplasticized PVC pressure pipes — Part 1 : Injection moulded unplasticized PVC fittings for solvent welding for use with pressure pipes, including potable water supply
2010BS EN ISO 1452-1:2009 Plastics piping systems for water supply and for buried and above-ground drainage and sewerage under pressure - Unplasticized poly(vinyl chloride) (PVC U) - General
2000BS EN 1452-1:1999 Plastics piping systems for water supply - Unplasticized poly (vinyl chloride) (PVC-U) - Part 1: General
1969BS 4346-1:1969 Joints and fittings for use with unplasticized PVC pressure pipes - Injection moulded unplasticized PVC fittings for solvent welding for use with pressure pipes, including potable water supply