Ozone and UV Systems
Testing and certification for UV and ozone water treatment systems.
Do you need testing or certification for your UV or ozone system? NSF provides both services for drinking water, municipal water, recreational water, and wastewater applications.
Why choose NSF?
NSF works with public health officials, manufacturers and facility operators to evaluate products and protect human health. We develop and apply rigorous standards for ozone and ultraviolet (UV) systems across a wide range of water treatment applications.
Standards we certify to
Drinking Water:
- NSF/ANSI/CAN 60 – Drinking Water Treatment Chemicals: Health Effects.
- NSF/ANSI/CAN 61 – Drinking Water System Components: Health Effects.
- NSF/ANSI 55 – Ultraviolet Microbiological Water Treatment Systems.
Municipal Water Treatment Performance:
Public Drinking Water Equipment Performance Certification Program (PDWEP).
Recreational Water:
NSF/ANSI 50 – Equipment for Swimming Pools, Spas, Hot Tubs, and Other Recreational Water Facilities.
Wastewater:
NSF/ANSI 46 and NSF/ANSI 385 – Evaluation of Components and Devices Used in Wastewater Treatment Systems.
Partner with NSF for trusted testing and certification that ensures your UV and ozone systems meet the highest standards for safety and performance.
Ready to Get Certified by NSF?
Start your certification journey today.
What’s New with NSF
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.
Meet NSF at Fruit Attraction
July 15, 2026NSF is excited to be exhibiting at Fruit Attraction, a leading international trade fair for the fruit and vegetable sector.