# 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 3.7.3: Calibration solutions

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

Transfer 0,5, 1,0 and 2,0 ml of the intermediate standard solution (3.7.2) into a series of 50 ml graduated flasks. Make up to the mark with the mobile phase (3.6) and mix. These solutions correspond to 0,5, 1,0 and 2,0 μg of amprolium per ml respectively. These solutions must be prepared freshly before use.

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Source: https://www.legislation.gov.uk/eur/2009/152/annex/VIII/division/C/division/3/division/3.7.3 (the official version)
Page: https://openlegislation.uk/eu-regulation-2009-152/annex-VIII/division-C/division-3/division-3.7.3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.