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How much lead does the NSF Standard allow to be leached from endpoint devices?

April 26, 2017Devices endpoint lead NSF standard

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How much lead does the NSF Standard allow to be leached from endpoint devices?

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The NSF Standard limits the amount of lead from endpoint devices to 11ppb when normalized to 1 liter. This approach is based on the 15ppb action level established in the lead and copper rule, considering the 11ppb lead contributed from the endpoint device as well as from sources other than the endpoint device, which is assumed to be 4ppb. [Note: The value of 11 ug is scheduled to be reduced to 5 ug for endpoint devices and 3 ug for stop valves and flexible connectors per Annex F of NSF 61.