A standard was developed to establish minimum requirements to the control of potential adverse human health effects from products added to water for its treatment.

The purpose of the standard establishes minimum health effects requirements for the chemicals, the chemical contaminants, and the impurities that are directly added to drinking water from drinking water treatment chemicals. This standard does not establish performance or taste and odour requirements for drinking water treatment chemicals.

The scope of the standard contains health effects requirements for drinking water treatment chemicals that are directly added to water and are intended to be present in the finished water. The standard also contains health effects requirements for other chemicals products that are directly added to water but are not intended to be present in the finished water. Chemicals, which are covered by this standard include, but are not limited to, coagulations and flocculation chemicals, softening, precipitation, sequestering, pH adjustment, and corrosion/scale control chemicals, disinfection and oxidation chemicals, miscellaneous treatment chemicals, and miscellaneous water supply chemicals.

Contaminants which are produced as by-products through reaction of the treatment chemical with a constituent of the treated water are not covered by this standard.

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NSF Certificate