# Council Decision of 14 November 1992 laying down methods for the analysis and testing of heat-treated milk for direct human consumption (92/608/EEC), Division 9.3: A test portion of 1 g of milk (semi-macro Kjeldahl) can be used instead of 5 g (6.1.) provided:

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

the amounts of the reagents used for mineralization (6.1.): H2SO4, CuSO4 · 5 H2O, K2SO4, are reduced to the same ratio (1/5).
the total digestion time (6.2.) is reduced to 75 minutes.
the amount of sodium hydroxide solution (6.3.) is reduced to the same ratio (1/5).
an acid standard solution (4.7.) of lower concentration (0,02 to 0,03 mol/l) has to be used.

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Source: https://www.legislation.gov.uk/eudn/1992/608/annex/2/division/IV/division/9/division/9.3 (the official version)
Page: https://openlegislation.uk/eu-decision-1992-608/annex-2/division-IV/division-9/division-9.3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.