Proposed revisions to:
NSF/ANSI 42: Drinking Water Treatment Units – Aesthetic Effects (42i134r1)
NSF/ANSI 44: Residential Cation Exchange Water Softeners (44i56r1)
NSF/ANSI 53: Drinking Water Treatment Units – Health Effects (53i145r1)
NSF/ANSI 55: Ultraviolet Microbiological Water Treatment Systems (55i67r1)
NSF/ANSI 58: Reverse Osmosis Drinking Water Treatment Systems (58i99r1)
NSF/ANSI 62: Drinking Water Distillation Systems (62i49r1)
NSF/ANSI 244: Supplemental Microbiological Water Treatment Systems – Filtration (244i24)
NSF/ANSI 401: Drinking Water Treatment Units – Emerging Compounds / Incidental Contaminants (401i38r1)
The proposed revisions update the values for maximum reporting limits and maximum effluent concentrations for ethylbenzene, toluene, and xylenes. |
