# Commission Implementing Decision (EU) 2020/1728 of 17 November 2020 on authorising methods for grading pig carcasses in Croatia (notified under document C(2020) 7880) (Only the Croatian text is authentic), Division 3: The lean meat content of a carcass shall be calculated according to the following formula:

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

LMPZP = 66,18242 – (0, 5312573 × F) + (0,02048905 × M)
where:
LMPZP the estimated percentage of lean meat in a carcass;
F the minimal thickness of visible fat (including rind) in millimetres, on the midline of the split carcass, covering the muscle gluteus medius;
M the minimal muscle depth between the anterior extremity of the muscle gluteus medius and the dorsal part of the medullar canal

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Source: https://www.legislation.gov.uk/eudn/2020/1728/annex/part/V/division/3 (the official version)
Page: https://openlegislation.uk/eu-decision-2020-1728/annex/part-V/division-3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.