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Title Approval of 53i161r1 - Normative Annexes 1 & 2
Description

Proposed revision to NSF/ANSI 53: Drinking Water Treatment Units — Health Effects (53i161r1)



The purpose of this ballot is to clarify normative annexes 1 and 2 regarding MDL, quality control, equipment requirements, matrix spike recovery and controls limits, negative control definition, microscopy analysis and interpretation, and analyst verification for Cryptosporidium parvum and polystyrene microspheres.
Ballot Options Ballot has closed
[ ] Affirmative
[ ] Negative
[ ] Abstain
Document for Approval 53i161r1 - Normative Annexes 1 2 - JC memo & ballot.pdf (see details in new window)
Opening Date Tue, Oct 29 2024 5:00 pm Eastern Daylight Time
Closing Date Tue, Nov 19 2024 11:59 pm Eastern Standard Time
Ballot has closed.

Referenced Items

Name Type Date Actions

09309: Approval of 53i161r1 - Normative Annexes 1 & 2

Document (Archive)

2024-11-20

 No Access

DWTU-2024-12 - Annex 1 2 (53) REV 10_24.pdf

Document

2024-10-29

Blank Comment - TEMPLATE.docx

Document

2024-10-29