# 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: Example:

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

The two volumes taken correspond, for each determination, to a sample of 250 mg.
In the first case 17 ml of sodium thiosulphate solution 0,1 mol/litre corresponding to 44,2 mg of glucose is consumed; in the second, 11 ml, corresponding to 27,6 mg of glucose.
The difference is 16,6 mg of glucose.
The content of reducing sugars (excluding lactose), calculated as glucose, is therefore:
4×16,610=6,64 %

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Source: https://www.legislation.gov.uk/eur/2009/152/annex/III/division/J/division/8/division/8.3.2/division/1 (the official version)
Page: https://openlegislation.uk/eu-regulation-2009-152/annex-III/division-J/division-8/division-8.3.2/division-1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.