NSF/ANSI 401 - 2019
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Drinking Water Treatment Units - Emerging Compounds / Incidental Contaminants
Hardcopy , PDF
13-12-2021
English
01-03-2020
The point-of-use (POU) and point-of-entry (POE) systems addressed by this Standard are designed to be used for the reduction of specific substances that may be present in drinking water (public or private), considered to be microbiologically safe, and of known quality.
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