Roof Drain Testing and Certification Program Questions and Answers
Purpose/scope: Drinking water components are tested to NSF/ANSI/CAN Standard 61, which includes a leachate test to evaluate products for all contaminants of health effects concern, not just lead. NSF/ANSI/CAN 61 also certifies lead content via Annex G and NSF/ANSI 372.
Purpose/scope: NSF/ANSI Standard 14 covers potable and non-potable water products. Potable water products are evaluated to the requirements of NSF/ANSI/CAN 61. Products are also tested to verify compliance with the performance standard. All potable water products certified by NSF under this program are lead-free.
1The term lead-free is defined as having a weighted average lead content of the wetted surfaces not exceeding 0.25 percent consistent with state and federal law.
Purpose/scope: NSF verifies manufacturer performance claims and material safety of drinking water treatment units (DWTUs). Products covered include: water filters, water softeners, reverse osmosis systems, distillers, UV disinfection, etc.
This standard establishes a standardized methodology for the determination and verification of product compliance with a maximum weighted average lead content requirement of 0.25 percent as required by the U.S. Safe Drinking Water Act. Currently eight states reported requirements for compliance with NSF/ANSI 372 and two additional states have regulations or legislation requiring certification or conformance to a 0.25 percent weighted average lead content for products conveying or dispensing drinking water.
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