# 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 1: Purpose and Scope

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

This method makes it possible to determine the level of vitamin A (retinol) in feed and premixtures. Vitamin A includes all-trans-retinyl alcohol and its cis-isomers which are determined by this method. The content of vitamin A is expressed in International Units (IU) per kg. One IU corresponds to the activity of 0,3 μg all-trans-vitamin A alcohol or 0,344 μg all-trans-vitamin A acetate or 0,55 μg all-trans-vitamin A palmitate.
The limit of quantification is 2 000 IU vitamin A/kg.

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Source: https://www.legislation.gov.uk/eur/2009/152/annex/IV/division/A/division/1 (the official version)
Page: https://openlegislation.uk/eu-regulation-2009-152/annex-IV/division-A/division-1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.