Draft 7 of NSF 358-1: Polyethylene Pipe and Fittings for Water-Based Ground-Source (Geothermal) Heat Pump Systems, is being forwarded to the Joint Committee for balloting.
2012 Update
Revision 6 of the draft was balloted in September 2011 and received multiple comments. The current draft, revision 7, incorporates most of these suggested revisions, including language to clarify the scope under 1.2 and testing requirements under 5.4. Additional editorial revisions were also made. Please refer to the original comments included the reference documents for additional information. |
