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See Chinese contents: GB 24427-2021 GB 24427-2021: Content limitation of mercury, cadmium and lead for zinc anode primary battery
This document specifies the limit requirements, inspection methods, and conformity determination requirements for mercury, cadmium and lead contents in standardized zinc-manganese dioxide batteries, zinc-silver oxide batteries, and zinc-air batteries. This document is applicable to the production, testing and acceptance of standardized zinc-manganese dioxide batteries, zinc-silver oxide batteries, zinc-air batteries and batteries composed of multiple single cells.
