WIS 4-32-15 Issue 1 March 1995 Specification for PE80 and PEl00 spigot fittings and drawn bends for nominal sizes up to and including 1000 | Water UK Standards Board

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WIS 4-32-15 Issue 1 March 1995 Specification for PE80 and PEl00 spigot fittings and drawn bends for nominal sizes up to and including 1000

Issue: March 1995 Code: 4-32-15 Status: Ageing

WIS 4-32-16 Issue 1 January 1998 Specification for butt fusion jointing machines

Issue: January 1998 Code: 4-32-16 Status: Archived

WIS 4-32-17 Issue 2 August 2001 Polyethylene pressure pipes for pressurised water supply and sewerage duties

Issue: August 2001 Code: 4-32-17 Status: Ageing

IGN 4-32-18 Issue 1 March 2003 The choice of pressure ratings for polyethylene pipe systems for water supply and sewerage duties

Issue: March 2003 Code: 4-32-18 Status: Ageing

WIS 4-32-19 Issue 1 Polyethylene pressure pipe systems with an aluminium barrier layer for potable water supply in contaminated land – size 25mm to 630mm

Issue: October 2007 Code: 4-32-19 Status: Archived

WIS 4-32-19 Issue 2 Polyethylene pressure pipe systems with an aluminium barrier layer for potable water supply in contaminated land – size 25mm to 630mm

Issue: April 2009 Code: 4-32-19 Status: Archived

WIS 4-32-19 Issue 3 Polyethylene pressure pipe systems with an aluminium barrier layer for potable water supply in contaminated land – size 25mm to 630mm

Issue: November 2011 Code: 4-32-19 Status: Archived

WIS 4-33-01 Issue 1 January 1990 Specification for polypropylene encapsulated steps for use in manholes and access chambers

Issue: January 1990 Code: 4-33-01 Status: Ageing

IGN 4-34-01 Issue 1 September 1982 GRP pipes and fittings

Issue: September 1982 Code: 4-34-01 Status: Archived

IGN 4-34-02 Issue 1 Specification for Glassfibre Reinforced Plastics (GRP) Sewer Linings

Issue: April 1986 Code: 4-34-02 Status: Archived