The point-of-use and point-of-entry systems addressed by this Standard are designed to be used for the reduction of specific substances that may be present in drinking water (public or private). These substances are considered established or potential health hazards. They may be microbiological, chemical, or particulate (including filterable cysts) in nature. It is recognized that a system may be effective in controlling one or more of these contaminants, but it is not required to control all. Activated carbon filter systems covered by this Standard are not intended to be used with water that is microbiologically unsafe or of unknown quality without adequate disinfection before or after the system.
NSF 53-2005 history
2024NSF 53-2018 Drinking water treatment units - Health effects
2017NSF 53-2017 Drinking water treatment units - Health effects
2016NSF 53-2016 Drinking water treatment units - Health effects
2015NSF 53-2015 Drinking Water Treatment Units - Health Effects
2014NSF 53-2014 Drinking Water Treatment Units - Health Effects
2013NSF 53-2013 Drinking Water Treatment Units - Health Effects
2012NSF 53-2012 Drinking Water Treatment Units - Health Effects
2011NSF 53-2011 Drinking Water Treatment Units - Health Effects
2010NSF 53-2010 Drinking Water Treatment Units - Health Effects
2009NSF 53-2009 Drinking Water Treatment Units-Health Effects
2007NSF 53-2007 Drinking Water Treatment Units-Health Effects
2006NSF 53-2006 Drinking Water Treatment Units-Health Effects
2005NSF 53-2005 Drinking Water Treatment Units-Health Effects
2004NSF 53-2004 Drinking Water Treatment Units-Health Effects
2002NSF 53-2002 Drinking Water Treatment Units-Health Effects
1970NSF 53-2001 Drinking Water Treatment Units-Health Effects
2000NSF 53-2000 Drinking Water Treatment Units-Health Effects