# 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 5: Procedure

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

Note:Vitamin E is sensitive to (UV-) light and to oxidation. All operations shall be carried out in the absence of light (using amber glassware, or glassware protected with aluminium foil) and oxygen (flush with nitrogen). During extraction air above the liquid shall be replaced by nitrogen (avoid excess pressure by loosening the stopper from time to time).

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Source: https://www.legislation.gov.uk/eur/2009/152/annex/IV/division/B/division/5 (the official version)
Page: https://openlegislation.uk/eu-regulation-2009-152/annex-IV/division-B/division-5
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.