The following is a list of all standards to which WQA performs product testing and certification:
Standards with WQA's Scope of Accreditation
- CSA B483.1: Drinking Water Treatment Systems, 2017
- NSF/ANSI 14: Plastics Piping System Components & Related Products, 2016b
- NSF/ANSI 18: Manual Food & Beverage Dispensing, 2016
- NSF/ANSI 42: Drinking Water Treatment Units, Aesthetic Effects, 2017
- NSF/ANSI 44: Residential Cation Exchange Water Softeners, 2017
- NSF/ANSI 50: Equipment and Chemicals for Swimming Pools, Spas, Hot Tubs and Other Recreational Water Facilities, 2017
- NSF/ANSI 51: Food Equipment Materials, 2017
- NSF/ANSI 53: Drinking Water Treatment Units - Health Effects, 2017
- NSF/ANSI 55: Ultraviolet Microbiological Water Treatment Systems, 2017
- NSF/ANSI 58: Reverse Osmosis Drinking Water Treatment Systems, 2017
- NSF/ANSI 60: Drinking Water Treatment Chemicals - Health Effects, 2017
- NSF/ANSI 61: Drinking Water System Components - Health Effects, 2017
- NSF/ANSI 62: Drinking Water Distillation Systems, 2018
- NSF/ANSI 169: Special Purpose Food Equipment and Devices, 2016
- NSF/ANSI 177: Shower Filtration Systems - Aesthetic Effects, 2014
- NSF/ANSI 372: Drinking Water System Components – Lead Content, 2016
- NSF/ANSI 401: Drinking Water Treatment Units – Emerging Compounds/Incidental Contaminants, 2017a
- NSF Protocol P231: Microbiological Water Purifiers, 2003
- US EPA Guide Standard and Protocol for Testing Microbiological Water Purifiers, 1987
- WQA S-100: Household, Commercial, and Portable Exchange Cation Exchange Water Softeners, 2000
- WQA S-200: Residential and Commercial Water Filters, 2012
- WQA S-300: Point-of-Use Reverse Osmosis Drinking Water Systems, 2000
- WQA S-400: Point-of-Use Distillation Drinking Water Systems, 2000
- WQA/ASPE/ANSI S-803: Sustainable Drinking Water Treatment Systems, 2017
- WQA/ASPE/ANSI S-802: Sustainable Activated Carbon Media for Drinking Water Treatment, 2017
- NSF/AWWA/ANSI 375: Sustainability Assessment for Water Contact Products, 2016
- NSF/AWWA/ANSI 416: Sustainability Assessment for Water Treatment Chemical Products, 2017
Standards Outside of WQA's Scope of Accreditation
- Bottled Water evaluated under the Bottled Water Scheme (FDA Guidelines)
- Indian Standard - Packaged Drinking Water (Other than packaged natural mineral water) - Specification
- Korean Standard for Water Purifiers
- Perfluorochemical (PFC) Tested Products
- WQA ORD0901: Microbiological Reduction Testing Protocol – Tap Water Sources for Developing Countries – Pour Through Products, 2009
- WQA ORD1502: Protocol for Evaluation of the Ability of PEX Pipe to withstand Static Freeze-Thaw Cycles, 2015
- WQA ORD1901: Harmonized Product Requirements for Drinking Water Treatment Units that Make Manganese Performance Claims