Standards UL can provide technical expertise and certification:

Note – if you have a testing need for your plumbing product or drinking water treatment unit or chemicals and the standard is not on this list, please contact us directly at and we can help identify the available resources.


Plumbing Fixtures:

CSA B45.5/IAPMO Z124 – Plastic Plumbing Fixtures Updates

ASME A112.19.1/CSA B45.2 – Enameled Cast Iron and Enameled Steel Plumbing Fixtures

ASME A112.19.2/CSA B45.1 – Ceramic Plumbing Fixtures

ASME A112.19.3/CSA B45.4 – Stainless Steel Plumbing Fixtures

ASME A112.19.4M – Porcelain Enameled Formed Steel Plumbing Fixtures

ASME A112.19.7/CSA B45.10 – Hydromassage Bathtub Systems

ASME A112.19.15 – Bathtubs/Whirlpool Bathtubs with Pressure Sealed Doors

ASTM F446 Standard Consumer Safety Specification for Grab Bars and Accessories Installed in the Bathing Area

WaterSense® – Flushing Urinals, Flushometer-Valve Toilets, and Tank-Type Toilets


Plumbing Fittings:

ASME A112.19.5/CSA B45.15 – Flush Valves and Spuds for Water Closets, Urinals, and Tanks

ASME A112.18.2/CSA B125.2 – Plumbing Waste Fittings

ASSE 1002 – Anti-Siphon Fill Valves for Water Closet Tanks

ASSE 1069 – Automatic Temperature Control Mixing Valves

ASSE 1070 – Water Temperature Limiting Devices

ASME A112.18.6/CSA B125.6 Flexible Water Connectors

ASSE 1017 – Temperature Actuated Mixing Valves for Hot Water Distribution Systems

IAPMO/ANSI Z1157 Ball Valves

ASSE 1003 – Performance Requirements for Water Pressure Reducing Valves for Domestic Water Distribution Systems

WaterSense® – Commercial Pre-Rinse Spray valves, Lavatory Faucets, and Showerheads

ASME A112.18.1/CSA B125.1-05 Updated April 2007 – Plumbing Supply Fittings

ASSE 1014-2005 – Performance Requirements for backflow Prevention Devices for Hand-Held Showers.

ASSE 1016-2005 – Performance Requirements for Automatic Compensating Valves for Individual Showers and Tub/Shower Combinations

ASSE 1037-1990 – Performance Requirements for Pressurized Flushing Devices (Flushometers) for Plumbing fixtures

ASSE 1062-2006- Performance Requirements for Temperature Actuated, Flow Reduction (TAFR) Valves for Individual Supply Fittings

CSA B125.3-2005 – Updated February 2008 – Plumbing Fittings


Backflow Prevention:

ASSE 1001 – Atmospheric Type Vacuum Breakers

ASSE 1056 – Spill Resistant Vacuum Breakers

CSA B64 Series – Backflow Preventers and Vacuum Breakers


Elastomeric Seals:

ASTM F 477-10 Standard Specification for Elastomeric Seals (Gaskets) for Joining Plastic Pipe


PE Pipe:

ASTM D 2104-03 Standard Specification for Polyethylene (PE) Plastic Pipe, Schedule 40

ASTM D 2239-03 Standard Specification for Polyethylene (PE) Plastic Pipe (SIDR-PR) Based on Controlled Inside Diameter

ASTM D 2447-03 Standard Specification for Polyethylene (PE) Plastic Pipe, Schedules 40 and 80, Based on Outside Diameter

ASTM D 2513-09a Standard Specification for Polyethylene (PE) Gas Pressure Pipe, Tubing, and Fittings

ASTM D 2737-03 Standard Specification for Polyethylene (PE) Plastic Tubing

ASTM D 3035-08 Standard Specification for Polyethylene (PE) Plastic Pipe (DR-PR) Based on Controlled Outside Diameter

ASTM F 714-08 Standard Specification for Polyethylene (PE) Plastic Pipe (SDR-PR) Based on Outside Diameter

CSA B137.1-09 Polyethylene (PE) pipe, tubing, and fittings for cold-water pressure services

CSA B137.4-09 Polyethylene (PE) piping systems for gas services


Health Effects: 

NSF/ANSI Standard 61: Drinking Water System Components – Health Effects Updates
NSF/ANSI Standard 372: Drinking Water System Components – Lead Content