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About This Item
Full Description
This Amendment contains the following revisions:
- Issue 94 - The revision corrects an error recently found in NSF/ANSI 53. When the standard was reformatted several years ago, section 1.3 - Alternate materials, designs, and construction was mistakenly omitted (it is currently still listed in NSF/ANSI 42). This language has been reinserted to its previous location under section 1.
- Issue 95 - The revision allows for a shorter cycle time for performance indication devices (PID) during the flow test method under section 6.
- Issue 96 - The revision allows for alternate methods for enumerating the stock oocyst and microsphere suspensions.
- Issue 97 - The revision removes the reference to using formaldehyde as a disinfectant when perparing oocyts in the procedure under Annex A of NSF/ANSI 53.
Document History
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NSF/ANSI 53-2023
Drinking Water Treatment Units - Health Effects- Most Recent
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NSF/ANSI 53-2022
Drinking Water Treatment Units - Health Effects- Historical Version
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NSF/ANSI 53-2021
Drinking Water Treatment Units - Health Effects- Historical Version
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NSF/ANSI 53-2020
Drinking Water Treatment Units - Health Effects- Historical Version
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NSF/ANSI 53-2019
Drinking Water Treatment Units - Health Effects- Historical Version
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NSF 53-2018
Drinking water treatment units - Health effects- Historical Version
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NSF 53-2017
Drinking water treatment units - Health effects- Historical Version
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NSF 53-2016
Drinking water treatment units - Health effects- Historical Version
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NSF 53-2015
Drinking water treatment units - Health effects- Historical Version
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NSF 53-2014
Drinking water treatment units - Health effects- Historical Version
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NSF 53-2013 Addendum 1
viewing
Drinking water treatment units - Health effects - Addendum 1- Historical Version
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NSF 53-2013
Drinking water treatment units - Health effects- Historical Version
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NSF 53-2012
Drinking water treatment units - Health effects- Historical Version
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NSF 53-2011a
Drinking water treatment units - Health effects- Historical Version
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NSF 53-2011
Drinking Water Treatment Units-Health Effects- Historical Version
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NSF 53-2010
Drinking Water Treatment Units-Health Effects- Historical Version
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NSF 53-2009e
Drinking Water Treatment Units-Health Effects- Historical Version
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NSF 53-2009
Drinking Water Treatment Units-Health Effects- Historical Version
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NSF 53-2007a
Drinking Water Treatment Units-Health Effects- Historical Version
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NSF 53-2007
Drinking Water Treatment Units-Health Effects- Historical Version
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NSF 53-2006
Drinking Water Treatment Units-Health Effects- Historical Version
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NSF 53-2005
Drinking Water Treatment Units-Health Effects- Historical Version
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NSF 53-2004
Drinking Water Treatment Units-Health Effects- Historical Version
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NSF 53-2002e
Drinking Water Treatment Units-Health Effects- Historical Version
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NSF 53-2002
Drinking Water Treatment Units-Health Effects- Historical Version
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NSF 53-2001
Drinking Water Treatment Units-Health Effects- Historical Version
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NSF 53-2000a
Drinking Water Treatment Units-Health Effects- Historical Version
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NSF 53-2000
Drinking Water Treatment Units-Health Effects- Historical Version