Proposed revision to NSF/ANSI 350 – Onsite Residential and Commercial Water Reuse Treatment Systems (350i54r2) The proposed revision will incorporate backflow prevention language in section 5 of NSF/ANSI 350.
06570: Approval of 350i54r2 - Backflow Prevention
Document (Archive)
2020-09-12
WWT-2020-23 - blackflow prevention.pdf
Document
2020-08-21
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