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Water Quality and Health Effects


Water Quality Testing & Certification

If your plumbing product delivers drinking water or contains a filter, water softener, reverse osmosis unit, or ultraviolet disinfectant (UV) unit, CSA Group provides you with a one-stop-solution of testing and certification solution that includes drinking water, mechanical, and electrical standards. CSA Group evaluates both point-of-entry and point-of-use products, and can test and certify individual plumbing components, such as filter cartridges that reduce lead or chlorine.

CSA Group tests water quality to CSA, NSF and ANSI standards.

For plumbing supply fittings:
  • NSF/ANSI 372 lead testing in drinking water for supply fittings & pipes (should this be “for”)
  • NSF/ANSI/CAN 61 toxicology testing of drinking water for supply fittings & pipes
  • ASME A112.18.1/CSA B125.1 plumbing supply fittings
  • CSA B483.1 and NSF/ANSI 42, 44, 53, 55, and 58 for drinking water treatment units
For electrical plumbing components:
  • C22.2 No. 139
  • C22.2 No. 218
  • UL429 For drinking water
See table below for details:
Standard Standard Description
NSF/ANSI Series  
NSF/ANSI 42 Drinking Water Treatment Units - Aesthetic Effects
NSF/ANSI 44 Residential Cation Exchange Water Softeners
NSF/ANSI 53 Drinking Water Treatment Units - Health Effects
NSF/ANSI 55 Ultraviolet Microbiological Water Treatment Systems
NSF/ANSI 58 Reverse Osmosis Water Treatment Systems
NSF/ANSI 60 Drinking Water Treatment Chemicals - Health Effects
NSF/ANSI 61 Drinking Water System Components - Health Effects
NSF/ANSI 372 Drinking Water System Components - Lead Content
CSA B483 Series
CSA B483.1 Drinking Water Treatment

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