Document
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)
Introduction
WIS 4-32-17 Issue 2 August 2001 states WIS 4-32-03 was superseded by WIS 4-32-17 Issue 2 August 2001.
Caveats
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