WIS 4-31-06 Issue 1 January 1990 Specification for blue unplasticized PVC pressure pipes, integral joints and post-formed bends for cold potable water (underground use) | Water UK Standards Board

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WIS 4-31-06 Issue 1 January 1990 Specification for blue unplasticized PVC pressure pipes, integral joints and post-formed bends for cold potable water (underground use)

Issue: January 1990 Code: 4-31-06 Status: Archived

WIS 4-31-07 Issue 2 March 1994 Specification for unplasticized PVC pressure fittings and assemblies for cold potable water (underground use)

Issue: March 1994 Code: 4-31-07 Status: Ageing

WIS 4-31-07 Issue 1 March 1990 Specification for unplasticized PVC pressure fittings and assemblies for cold potable water (underground use)

Issue: March 1990 Code: 4-31-07 Status: Archived

IGN 4-32-02 Issue 3 August 1988 Specification for polyethylene pressure pipe for cold potable water (underground use)

Issue: August 1988 Code: 4-32-02 Status: Archived

IGN 4-32-03 Issue 3 May 1987 Specification for blue polyethylene (PE) pressure pipe for cold potable water (nominal sizes 90 to 1000 for underground or protected use)

Issue: May 1987 Code: 4-32-03 Status: Archived

WIS 4-32-04 Issue 2 December 1988 Specification for polyethylene socket and spigot fittings, saddles and drawn bends for fusion jointing for use with cold potable water PE pressure pipes

Issue: December 1988 Code: 4-32-04 Status: Archived

IGN 4-32-05 Issue 1 April 1986 Specification for polyethylene (PE) pipes for sewer linings (non-pressure applications)

Issue: April 1986 Code: 4-32-05 Status: Archived

WIS 4-32-06 Issue 1 September 1989 Specification for polyethylene electrofusion couplers and fittings for cold potable water supply for nominal sizes up to and including 180

Issue: September 1989 Code: 4-32-06 Status: Archived

WIS 4-32-08 Issue 4 June 2016 Specification for the fusion jointing of polyethylene pressure pipeline systems using pe80 and pe100 materials

Issue: June 2016 Code: 4-32-08 Status: Current

IGN 4-32-08 Issue 1 August 1988 Specification for site fusion jointing of MDPE pipe and fittings

Issue: August 1988 Code: 4-32-08 Status: Archived