Proposed revisions to:
NSF/ANSI 42: Drinking Water Treatment Units – Aesthetic Effects (42i129r2)
NSF/ANSI 53: Drinking Water Treatment Units – Health Effects (53i154r2)
NSF/ANSI 58: Reverse Osmosis Drinking Water Treatment Systems (58i107r2)
NSF/ANSI 401: Drinking Water Treatment Units – Emerging Compounds / Incidental Contaminants (401i34r2)
The proposed revisions standardize water temperatures for hydrostatic structural integrity testing as well as chemical reduction testing, including POE. Revision 2 removes changes to full RO systems in NSF/ANSI 58 and deletes now redundant sections from NSF/ANSI 42. |
