Key Standards for Pressure Pipes and Fittings
WIS
4-31-08 Issue 2	Orientated polyvinyl chloride (PVC-O) pressure pipe for underground use.
4-32-08 Issue 3	Specification for the fusion jointing of polyethylene pressure pipeline systems using PE80 and PE100 materials.
4-32-11 Issue 2	Thermoplastic end load resistant mechanical fittings for polyethylene pipes of  nominal  size =n63.
4-32-14	Specification for PE80 & PE 100 electrofusion fittings for nominal sizes up to  and including 630mm.
4-32-15	Specification for PE80 & PE100 spigot fittings and drawn bends for nominal sizes up to and including 1000.
4-32-17 Issue 2	Polyethylene pressure pipes for pressurised water supply and sewerage duties.
4-32-18	The choice of pressure ratings for polyethylene pipe systems for water supply and sewerage duties.
Transco Specification
PL2	Technical specification for PE pipes and fittings for natural gas and suitable manufactured gas.
BS Standards
4346 – Part 1	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. listed by BSI as current, superseded, replaced by BS EN 1452.
4346 – Part 2	Joints and fittings for use with unplasticized PVC pressure pipes – mechanical joints and fittings, principally of unplasticized PVC. Listed by BSI as current, superseded, replaced by BS EN 1452.
4346 – Part 3	Joints and fittings for use with unplasticized PVC pressure pipes - Specification for solvent cement Listed by BSI as current, superseded, replaced by BS EN 1452.
5391	Specification for ABS Pressure pipe
5392	Specification for ABS pressure fittings for use with ABS pressure pipe
6572	Specification for blue polyethylene pipes up to normal size 63 for below ground use for potable water. Listed by BSI as current, superseded, obsolescent, replaced by BS EN 12201.
6730	Specification for black polyethylene pipes up to nominal size 63 for above ground use for cold potable water. Listed by BSI as current, superseded, obsolescent, replaced by BS EN 12201
3505	Specification for unplasticized polyvinyl chloride (PVC-U) pressure pipes for cold potable water. Listed by BSI as current, superseded, replaced by BS EN 1452.
3506	Specification for unplasticized PVC pipe for industrial uses
BS EN Standards
1452	Plastics Piping Systems for Water Supply - Unplasticized Poly(Vinyl Chloride) (PVC-U)
12201	Plastics piping systems for water supply - Polyethylene (PE)
1555	Plastics piping systems for the supply of gaseous fuels – Polyethylene (PE).