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NSF 58

2016 Edition, May 23, 2016

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Reverse Osmosis Drinking Water Treatment Systems

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Product Details:

  • Revision: 2016 Edition, May 23, 2016
  • Published Date: May 23, 2016
  • Status: Active, Most Current
  • Document Language: English
  • Published By: NSF International (NSF)
  • Page Count: 84
  • ANSI Approved: Yes
  • DoD Adopted: No

Description / Abstract:

The point-of-use reverse osmosis drinking water treatment systems addressed by this Standard are designed to be used for the reduction of specific substances that may be present in drinking water supplies (public or private) considered to be microbiologically safe and of known quality (except that claims for the reduction of filterable cysts may be permitted). Systems covered by this Standard are intended for reduction of total dissolved solids (TDS) and other contaminants specified herein. Systems with components or functions covered under other NSF or NSF/ANSI Standards or Criteria shall conform to the applicable requirements therein.


The purpose of this Standard is to establish minimum requirements for materials, design and construction, and performance of reverse osmosis drinking water treatment systems. This Standard also specifies the minimum product literature that manufacturers shall supply to authorized representatives and owners, as well as the minimum service-related obligations that manufacturers shall extend to system owners.