Onsite Wastewater Systems and Components Testing and Certification
Are you a manufacturer of an onsite wastewater system or component? Looking to get your product or system tested or certified to a specific standard? As the regulatory landscape for these products is robust, we are pleased to have assisted manufacturers worldwide with testing and certification to various wastewater standards over the past 40+ years.
Below is a list of some of the key onsite wastewater standards for which we offer services:
Standard number | Standard title |
NSF/ANSI 40 | Residential Wastewater Treatment Systems |
NSF/ANSI 41 | Non-liquid Saturated Treatment Systems |
NSF/ANSI 46 | Evaluation of Components and Devices Used in Wastewater Treatment Systems |
NSF/ANSI 245 | Wastewater treatment systems – nitrogen reduction |
NSF/ANSI 350 | Onsite residential and commercial water reuse treatment systems |
NSF/ANSI 360 | Wastewater treatment systems – Field performance verification |
NSF/ANSI 385 | Disinfection Mechanics |
NSF/ANSI 418 | Effluent Filters - Field Longevity Testing |
CAN/BNQ 3680-600 | Onsite Residential Wastewater Treatment Technologies |
NSF P157 | Incinerating Toilet Systems- Health and Sanitation |
ISO 11143 | Dentistry - Amalgam separators |
Contact us using the form below if you’re interested in testing or certification to a specific standard listed or for a custom project.
How NSF Can Help You
What’s New with NSF
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August 20, 2026CELSIUS® has earned NSF Certified for Sport® certification for select products, including the CELSIUS VIBES line, reinforcing the brand’s commitment to quality, transparency and consumer trust.
Thomas Vyles Honored With 2026 Walter F. Snyder Environmental Health Award
August 19, 2026The award honors Walter F. Snyder, co-founder and first executive director of NSF, and pioneers whose work advances environmental and public health.
NSF Hosts First External Review Panel for ‘NSF/KWTC 555’ with Key Asian Water Authorities
August 3, 2026Joint standard development gains momentum to enhance confidence in Asia’s water industry and advance drinking water safety.
NSF Achieves European Accreditation for Drinking Water Product Certification Ahead of 2027 EU Deadline
July 22, 2026The ISO/IEC 17065 accreditation from BELAC complements NSF’s testing capacity, enabling end-to-end support for EU Drinking Water Directive (DWD) readiness ahead of the January 2027 deadline.