Lead Content Calculation Core requirement: Weighted average lead content < 0.25% Formula:
Sample Faucet
Example weighted average lead content calculation
How does NSF verify lead content? Manufacturer disclosure Metal certification Factory inspection Product testing
Marking
Summary Look for NSF® - 61-G After January 4, 2014 After July 1, 2012 Ensure products meet low lead content, and all contaminant leaching requirements. After January 4, 2014 All NSF 61 products will need to comply with low lead content requirements. After July 1, 2012 All NSF 61 products will need to comply with lower lead leaching requirements.