Proposed revisions to:
NSF/ANSI 42: Drinking Water Treatment Units – Aesthetic Effects (42i120r1)
NSF/ANSI 53: Drinking Water Treatment Units – Health Effects (53i146r1)
NSF/ANSI 55: Ultraviolet Microbiological Water Treatment Systems (55i63r1)
NSF/ANSI 58: Reverse Osmosis Drinking Water Treatment Systems (58i100r1)
NSF/ANSI 62: Drinking Water Distillation Systems (62i44r1)
NSF/ANSI 177: Shower Filtration Systems – Aesthetic Effects (177i12r1)
NSF/ANSI 244: Supplemental Microbiological Water Treatment Systems – Filtration (244i18r1)
The proposed revisions update the Normative References section to remove reference to an outdated edition of Standard Methods for the Examination of Water and Wastewater and to harmonize language across standards. |
