NSF 46-2007

Evaluation of components and devices used in wastewater treatment systems
standard by NSF International, 01/05/2007

NSF 169-2012

Special purpose food equipment and devices
standard by NSF International, 08/08/2012

NSF 245-2018

Residential Wastewater Treatment Systems – Nitrogen Reduction
standard by NSF International, 01/24/2018

NSF 14-2015

Plastics Piping System Components and Related Materials
standard by NSF International, 08/12/2014

NSF 44-2002 Addendum

NSF/ANSI 44 – 2002, Addendum 1.0 – 2002: Residential cation exchange water softeners
Amendment by NSF International, 07/31/2002

NSF 52-2003

Supplemental Flooring
standard by NSF International, 08/26/2003

NSF 50-2010

Equipment for Swimming Pools, Spas, Hot Tubs and other Recreational Water Facilities – Evaluation criteria for materials, components, products, equipment and systems for use at recreational water facilities
standard by NSF International, 08/01/2010

NSF 51-2007

Food Equipment Materials
standard by NSF International, 04/03/2007

NSF 42-2016

Drinking Water Treatment Units – Aesthetic Effects
standard by NSF International, 08/14/2016

NSF 330-2009

Glossary of drinking water treatment unit terminology
standard by NSF International, 02/20/2009