# 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 3.21

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

Extraction mixture, c = 0,1 mol HCl/l containing 2 % thiodiglycol: Take 8,2 ml HCl (3.7), dilute with approximately 900 ml water, add 20 ml thiodiglycol (3.9) and make up to 1 litre with water, (do not mix 3.7 and 3.9 directly).

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Source: https://www.legislation.gov.uk/eur/2009/152/annex/III/division/F/division/3/division/3.21 (the official version)
Page: https://openlegislation.uk/eu-regulation-2009-152/annex-III/division-F/division-3/division-3.21
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.