The proposed standard, NSF 358-1, addresses polyethylene pipe and fittings for water-based ground-source (geothermal) heat pump systems.
01852: Approval of 358-1i1r6
Document (Archive)
2012-02-17
Issue doc #P2011-14.pdf
Document
2011-09-02
7/26/11 meeting summary - revised
2011-08-18
JC Meeting Excerpt NSF 358 2009 & 2010.pdf
2011-03-24
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