# Commission Regulation (EC) No 152/2009 of 27 January 2009 laying down the methods of sampling and analysis for the official control of feed (Text with EEA relevance), Division 2: Principle

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

The sample is brought into solution in hydrochloric acid after destruction of organic matter, if any. The elements iron, copper, manganese and zinc are determined, after appropriate dilution, by atomic absorption spectrometry.

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Source: https://www.legislation.gov.uk/eur/2009/152/annex/IV/division/C/division/2 (the official version)
Page: https://openlegislation.uk/eu-regulation-2009-152/annex-IV/division-C/division-2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.