Proposed revision to NSF/ANSI 42 – Drinking water treatment units – Aesthetic effects, NSF/ANSI 53 – Drinking water treatment units – Health effects, NSF/ANSI 244 – Drinking Water Treatment Units – Supplemental Microbiological Water Treatment Systems – Filtration, and NSF/ANSI 401 – Drinking water treatment units – Emerging compounds/incidental contaminants.
The proposed revision will incorporate guidance on extraction testing for hot and cold water dispensers into the DWTU standards. |
