NSF 44-2002
Residential Cation Exchange Water Softenersstandard by NSF International, 02/08/2002
NSF 49-2004a
NSF 49 Class II (Laminar Flow) Biosafety Cabinetrystandard by NSF International, 11/11/2004
NSF 49-2018
Biosafety Cabinetry: Design, Construction, Performance, and Field Certificationstandard by NSF International, 2018
NSF 46-2013
Evaluation of components and devices used in wastewater treatment systemsstandard by NSF International, 12/01/2013
NSF 61-2016
Drinking Water System Components - Health Effects (Includes Amendment)standard by NSF International, 01/05/2016
NSF 55-2000
Ultraviolet Microbiological Water Treatment Systemsstandard by NSF International, 05/01/2000
NSF 53-2017
Drinking water treatment units - Health effectsstandard by NSF International, 04/26/2017