Geothermal Plastic Piping Systems Certification
Most U.S. state and Canadian province drinking water regulations require pipes and fittings conveying drinking water to meet the requirements of NSF/ANSI/CAN 61 to ensure components will not contribute harmful levels of contaminants to the drinking water.
What is NSF/ANSI/CAN 61?
NSF/ANSI/CAN 61: Drinking Water System Components -Health Effects is the American National Standard and the Canadian National Standard that establishes the health effects requirements for chemical contaminants and impurities that are indirectly imparted to drinking water from products, components, and materials used in drinking water systems.
How do I know if HDPE pipes or fittings meet this NSF requirement?
HDPE pipes or fittings certified by NSF will bear either the NSF®-61 mark or the NSF® pw (potable water) mark on the print string. The NSF® pw mark indicates the product meets the health requirements of NSF/ANSI/CAN 61 as well as performance, long-term strength, and quality control requirements in NSF/ANSI 14: Plastic Piping Components and Related Materials.
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Verify the compliance of materials and ingredients with both North American and international standards.
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What’s New with NSF
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September 10, 2026NSF's appointment of Nicole supports the organisation's continued focus on long-term growth and transformation.
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August 31, 2026This milestone marks the successful completion of the RIOS Auditor Course by NSF’s team in India and the establishment of a robust regional compliance infrastructure to support organizations seeking RIOS certification.
NSF Launches Independent Certification Standard for Compact Products
August 25, 2026New third-party certification verifies products cutting materials and shipping impacts while maintaining safety and performance.
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.