# 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 3.9

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

Starch solution: add a mixture of 5 g of soluble starch in 30 ml of water to 1 litre of boiling water. Boil for three minutes, leave to cool, and if necessary add 10 mg of mercuric iodide as a preservative.

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Source: https://www.legislation.gov.uk/eur/2009/152/annex/III/division/K/division/3/division/3.9 (the official version)
Page: https://openlegislation.uk/eu-regulation-2009-152/annex-III/division-K/division-3/division-3.9
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.