NSF 50-2016a

Equipment for Swimming Pools, Spas, Hot Tubs and other Recreational Water Facilities
standard by NSF International, 12/30/2016

NSF 42-2016

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

NSF 37-2002

Air curtains for entranceways in food and food service establishments, Revision to NSF/ANSI 37 – 1992
standard by NSF International, 04/26/2002

NSF 14-2007

Plastics Piping System Components and Related Materials
standard by NSF International, 03/02/2007

NSF 46-2009

Evaluation of components and devices used in wastewater treatment systems
standard by NSF International, 02/25/2009