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About This Item

 

Full Description

This Standard, NSF/ANSI 372 Drinking water system components - Lead Content is the third in a series of standards developed by the NSF Joint Committees on Drinking Water Additives. The other two Standards for drinking water additives products are NSF/ANSI 60 Drinking water treatment chemicals ? Health effects, which addresses drinking water treatment chemicals (also known as direct additives) and NSF/ANSI 61 Drinking water system components Health effects, which covers products and materials that contact drinking water (also known as indirect additives).

Prior to being developed as NSF/ANSI 372, part of the content of this Standard was established as NSF/ANSI 61, Annex G - Weighed average lead content evaluation procedure to a 0.25% lead requirement. Annex G was developed by the NSF Drinking Water Additives Task Group on Lead and approved by the NSF Joint Committee on Drinking Water Additives - System Components for addition to NSF/ANSI 61 in 2008. The impetus for creating Annex G was the promulgation of individual state regulatory requirements limiting the amount of lead that may be contained in products contacting drinking water. While Annex G was an optional evaluation method within NSF/ANSI 61, it required that products also meet the chemical extraction requirements of NSF/ANSI 61, and it was limited in application to drinking water products that were included within the Scope of ANSI/NSF 61. The NSF Joint Committee on Drinking Water Additives - System Components determined that creation of a separate standard addressing lead content requirements would provide greater flexibility in the application of the lead content requirements to the marketplace and to organizations seeking to reference such requirements.

While NSF/ANSI 61 establishes limits for the amount of lead that may migrate into drinking water from the water contact materials within a drinking water contact product, NSF/ANSI 372 establishes a limit on the amount of lead that may be contained within the water contact materials in a drinking water contact product. This Standard also defines a test methodology for the analytical determination of the lead content of materials in these products.
 

Document History

  1. NSF 372-2016


    Drinking water system components - Lead content

    • Most Recent
  2. NSF 372-2011


    Drinking water system components - Lead content

    • Historical Version
  3. NSF 372-2010

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    Drinking water system components - Lead content

    • Historical Version