# First Commission Directive of 26 July 1979 laying down Community methods of analysis for testing certain sugars intended for human consumption (79/796/EEC), Division 7.1: Formula and method of calculation

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

The reducing sugars content of the sample calculation as invert sugar, is given by:
% reducing sugars (as invert sugar =
V o × 25 × f C o × V 1
where:
C the concentration of the sample test solution in g per 100 ml.
Vo the volume in ml of the standard invert solution used in the standardization titration,
V1 the volume in ml of the sample test solution used in the accurate analysis in 6.4.2,
f the correction factor to take account of the sucrose concentration in the sample test solution. Values are shown in the table below:
Sucrose (g in boiling mixture)
Correction factor f
0
1·000
0·5
0·982
1·0
0·971
1·5
0·962
2·0
0·954
2·5
0·946
3·0
0·939
3·5
0·932
4·0
0·926
4·5
0·920
5·0
0·915
5·5
0·910
6·0
0·904
6·5
0·898
7·0
0·893
7·5
0·888
8·0
0·883
8·5
0·878
9·0
0·874
9·5
0·869
10·0
0· 64
Corrections for varying sucrose contents of the sample test solution may be calculated from the table by interpolation.

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Source: https://www.legislation.gov.uk/eudr/1979/796/annex/II/division/8/division/7/division/7.1 (the official version)
Page: https://openlegislation.uk/eu-directive-1979-796/annex-II/division-8/division-7/division-7.1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.