NSFInternationalNSF International is a global independent organization that develops standards, conducts testing and certifies products for the water, food, health sciences and consumer goods industries to help minimize adverse health effects and protect the environment. A key area where NSF International has developed standards is water safety and quality.

NSF International’s Global Water Division publishes an annual newsletter entitled Municipal Water Matters. Click here to view the 2017 version. On pages 10-11, there is an article entitled “Importance of Corrosion Control” which discusses drinking water treatment and the role of polyphosphates in this process.

The most recent version of the NSF/American National Standards Institute (ANSI) Standard 60 for drinking water additives is available here. Standard 60 establishes minimum health effects requirements for the chemicals, the chemical contaminants, and the impurities that are directly added to drinking water from water treatment chemicals.

  • Click here to view the U.S./Canada Regulatory Survey, also known as the Association of State Drinking Water Administrators (ASDWA) Survey, which lists the requirements of NSF/ANSI 60 certification in each state or province, and shows the specific regulation/citation for each where available.
  • A listing of NSF 60 products can be accessed here.  To view the phosphate chemical listings, you can select the specific phosphate type (example: Sodium Tripolyphosphate) in the “Chemical Name” box, or select “Blended Phosphates” to view the certified phosphate blends.