# 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: Phosphate buffer solution, c = 0,01 mol/l.

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

Dissolve 1,36 g of KH2PO4 (3.1) in 500 ml of water (3.11), add 3,5 ml of orthophosphoric acid (3.2) and 10,0 ml of 6-methyl-2-heptylamine (3.4). Adjust the pH to 4,0 with orthophosphoric acid solution (3.3) and dilute to 1 000 ml with water (3.11).

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Source: https://www.legislation.gov.uk/eur/2009/152/annex/IV/division/G/division/3/division/3.7 (the official version)
Page: https://openlegislation.uk/eu-regulation-2009-152/annex-IV/division-G/division-3/division-3.7
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.