Drainage Products Certification

NSF helps manufacturers of drainage products meet all regulatory requirements and plumbing codes throughout the U.S. and Canada. We also provide listings to the Uniform Plumbing Code (UPC) and International Plumbing Code (IPC).
We test drainage products to confirm the accuracy of your stated flow rates and comply with industry standards, including:
- Floor drains (ASME A112.6.3)
- Roof drains (ASME A112.6.4)
- Grease interceptors and septic tanks (ASME A112.14.3, ASME A112.14.4, CSA B481)
- Plumbing waste fittings and valves (ASSE 1049, 1050 and 1051, ASME A112.14.1)
- Cast iron soil pipes and no-hub couplings (CISPI 301, CISPI 310, ASTM A888)
What Sets Us Apart
By certifying your products with NSF, you’ll shorten the turnaround time between manufacturing and testing, allowing you to get your products to market more quickly.
As an independent, third-party testing and certification agency, NSF is trusted by regulators, plumbing professionals and building and business owners. Manufacturers who achieve certification have access to more opportunities thanks to our highly credible, recognisable certification mark.
We list certified drainage products on NSF’s website, increasing the marketability and visibility of your products with regulators and consumers. In addition to earning industry recognition with the NSF mark, your company will have access to:
- State-of-the-art, in-house drain and grease interceptor testing rigs
- On-site witness testing with timely official results
- Discounts for bundled testing and certification services
Resources

ASSE 1099 – Mechanical Performance Testing of Pressurised Water Storage Tanks
ArticleThe standard sets minimum performance and construction requirements for pressurised water storage tanks used in water well systems, particularly for residential applications.
UK Water Regulations: The Compliance Paradox
ArticleNew NSF research reveals a critical gap threatening water safety in the UK.
Product Certification for Reducing PFAS in Drinking Water
ArticleNSF helps manufacturers certify that their products either do not contribute PFAS to drinking water or actively reduce PFAS levels.
How NSF Can Help You
