NSF 53-2006
NSF 53-2006
Drinking Water Treatment Units-Health Effectsstandard by NSF International, 01/12/2006
standard by NSF International, 01/12/2006
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.