Document
WIS 4-24-01 April 1991 Issue 1 Specification for mechanical fittings and joints including flanges for polyethylene pipes for the conveyance of cold potable water for the size range 90 to 1000 inclusive made of metal or plastics or a combination of both
Introduction
Issue 1 of this document was amended by WIS 4-24-01 Issue 1 Amendment 1 in August 1995.
Both documents were subsequently replaced by WIS 4-24-01 Issue 2 July 1998.
Both documents are currently only available in a scanned format.
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