NSF 55

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Ultraviolet Microbiological Water Treatment Systems
2018 Edition, July 31, 2018

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  • Revision:2018 Edition, July 31, 2018
  • Published Date:July 31, 2018
  • Status:Active, Most Current
  • Document Language:English
  • Published By:NSF International (NSF)
  • Page Count:62
  • ANSI Approved:Yes
  • DoD Adopted:No
  • This Standard covers UV microbiological water treatment systems and components for point-of-use (POU) and point-of-entry (POE) applications. Systems are intended to be used under the following specific conditions.


    The purpose of this Standard is to establish minimum requirements for the reduction of microorganisms using ultraviolet (UV) radiation. UV water treatment systems covered by this Standard are intended for water that may be either microbiologically safe or microbiologically unsafe. This Standard also specifies the minimum product literature and labeling information that a manufacturer shall supply to authorized representatives and system owners, as well as the minimum service-related obligations that the manufacturer shall extend to system owners.