# Commission Regulation (EU) No 493/2012 of 11 June 2012 laying down, pursuant to Directive 2006/66/EC of the European Parliament and of the Council, detailed rules regarding the calculation of recycling efficiencies of the recycling processes of waste batteries and accumulators (Text with EEA relevance), Division 1: The rate of recycled lead content is calculated as follows:

Extent: E+W+S+N.I.

RPb = Σ mPb outputmPb input × 100, [mass %]
where:
RPb calculated rate of recycled lead (Pb) from a recycling process for the purpose of Article 12(4) of Directive 2006/66/EC [in mass %];
mPb output the mass of Pb in output fractions accounting for recycling is the share of Pb contained in these fractions which results from the recycling of lead-acid batteries and accumulators per calendar year [in tonnes];
mPb input the mass of Pb in the input fraction entering the battery recycling process is defined as the yearly average Pb content of waste lead-acid batteries and accumulators multiplied by the input mass of lead-acid batteries and accumulators per calendar year [in tonnes].

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Source: https://www.legislation.gov.uk/eur/2012/493/annex/II/division/1 (the official version)
Page: https://openlegislation.uk/eu-regulation-2012-493/annex-II/division-1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.