Currently, the applicable compulsory standard in China is GB 24427-2021 Content limitation of Mercury, Cadmium, and Lead for Zinc Anode Primary Battery.

As of April 30th, 2021, the State Administration for Market Regulation (SAMR), in collaboration with the Standardization Administration of the P.R.C (SAC) established GB 24427-2021. This regulation repeals both GB 24427-2009 Limitation of mercury, cadmium, and lead contents for alkaline and non-alkaline zinc manganese dioxide batteries and GB 24428-2009 Limitation of mercury content for zinc silver-oxide, zinc oxygen, and zinc manganese dioxide button batteries.

Specifically, amendments to the 2009 regulations include:

-          Revised substance concentration limits,

-          Methods of testing, and

-          Determining compliance with requirements for cadmium, lead, and mercury in the standard:

    - zinc-manganese dioxide batteries,

    - zinc silver oxide batteries, and

    - zinc-air batteries.

Substance Limits for Standard Batteries in China

Furthermore, the new Chinese testing standard for mercury, cadmium, and lead in batteries is GB/T 20155. Analysts employ parallel testing, and two parts from a given batch produce the results for this determination.

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