Proposed revision to NSF/ANSI 177 – Shower Filtration Systems – Aesthetic Effects. The proposed revision updates the test water parameters used to evaluate free available chlorine (FAC) reduction in shower filtration systems.
06860: Approval of 177i9r1 - Revised Test Water Parameters
Document (Archive)
2021-03-06
2018 JC Update - Std 177 Validation.pdf
Document
2021-02-11
2019 JC presentation Std 177 Validation-2018Ballot.pdf
2020 DWTU JC Meeting Summary Excerpt - Shower Filters.pdf
Excerpt on typical US Drinking Waters.pdf
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