1. Lead Content Calculation
Core requirement:
Weighted average lead content < 0.25%
Formula:

2. Sample Faucet

3. Example weighted average lead content calculation

4. How does NSF verify lead content?
Manufacturer disclosure
Metal certification
Factory inspection
Product testing

5. Marking

6. 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.