New Categories of Water Treatment Chemicals Added to NSF/ANSI/CAN 60

The most recent additions to NSF/ANSI/CAN 60: Drinking Water Treatment Chemicals - Health Effects were issued in December 2020. The following new categories were added to the standard:
Acetic acid was added for biological substrate end use. When used as a biological substrate, acetic acid is added to the water treatment process to serve as an electron donor for reduction reactions in biological treatment systems.
Citric acid was added for use as a copper chelating agent, and as a separation process cleaner for use in reverse osmosis and distillation units to reduce built-up scale.
Bromochlorodimethylhydantoin (BCDMH) and chlorine dioxide were added as disinfection and oxidation products. These chemicals are used as disinfectants in the treatment of drinking water.
In addition to liquid chlorine dioxide solutions, NSF also certifies two-component kits used for on-site chlorine dioxide production at the end user (water utility) site under the category of Chlorine Dioxide Ingredients.
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NSF/ANSI/CAN 60
If you manufacture, sell or distribute water treatment chemicals for North America, your products are required to comply with NSF/ANSI/CAN 60: Drinking Water Treatment Chemicals - Health Effects.
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