Proposed revisions to NSF/ANSI 42 – Drinking Water Treatment Units - Aesthetic Effects, NSF/ANSI 53 – Drinking Water Treatment Units - Health Effects, NSF/ANSI 55 – Ultraviolet Microbiological Water Treatment Systems, NSF/ANSI 58 – Reverse Osmosis Drinking Water Treatment Systems, NSF/ANSI 62 – Drinking Water Distillation Systems, NSF/ANSI 244 – Supplemental Microbiological Water Treatment Systems – Filtration, and NSF/ANSI 401 – Drinking Water Treatment Units - Emerging Compounds / Incidental Contaminants.
The proposed revision clarifies the requirements for drinking fountains under the general performance requirements of section 6 of the DWTU standards. The ballot also revises the minimum air gap requirement for drinking fountain outlets from 2 inches to 1 inch to be aligned with other industry standards and codes. |
