Proposed revisions to:
NSF/ANSI 42: Drinking Water Treatment Units – Aesthetic Effects (42i128r2)
NSF/ANSI 44: Residential Cation Exchange Water Softeners (44i54r2)
NSF/ANSI 53: Drinking Water Treatment Units – Health Effects (53i153r2)
The proposed revisions add criteria for health-based claims for the removal of manganese to NSF/ANSI 44 and 53, and update language in NSF/ANSI 42 to clarify aesthetic versus health-based claims. Revision 2 adds clarifying language on the 0.02 mg/L effluent concentration value. |
