# First Commission Directive of 13 November 1979 laying down Community methods of analysis for testing certain partly or wholly dehydrated preserved milk for human consumption (79/1067/EEC), Division 6.2.3

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

After two hours remove both tubes from the water bath, add 0,5 ml of zinc sulphate precipitant (4.3.1), replace the stopper, shake vigorously and allow to stand for three minutes. Add 0,5 ml of potassium hexacyanoferrate (II) precipitant (4.3.2), mix thoroughly and filter through the fluted filter paper (5.4) and collect the clear filtrate in the clean test tube.

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Source: https://www.legislation.gov.uk/eudr/1979/1067/annex/II/division/9/division/6/division/6.2/division/6.2.3 (the official version)
Page: https://openlegislation.uk/eu-directive-1979-1067/annex-II/division-9/division-6/division-6.2/division-6.2.3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.