Proposed revision to NSF/ANSI 350 – Onsite Residential and Commercial Water Reuse Treatment Systems (350i54r1) The proposed revision will incorporate backflow prevention language in section 5 of NSF/ANSI 350.
06506: Approval of 350i54r1 - Backflow Prevention
Document (Archive)
2020-08-04
WWT-2020-23 - blackflow prevention.pdf
Document
2020-07-13
About UsParticipateTerms of UsePrivacy Policy