# 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 8: Note

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

A small volume of isopentanol (4·9) may be added before acidifying with sulphuric acid to reduce foaming.
Table of values according to Luff-Schoorl reagent
0·1 mol/litre Na2S2O3
Glucose, fructose, invert sugars C6H12O6
ml
mg
difference
1
2·4
2
4·8
2·4
3
7·2
2·4
4
9·7
2·5
5
12·2
2·5
6
14·7
2·5
7
17·2
2·5
8
19·8
2·6
9
22·4
2·6
10
25·0
2·6
11
27·6
2·6
12
30·3
2·7
13
33·0
2·7
14
35·7
2·7
15
38·5
2·8
16
41·3
2·8
17
44·2
2·9
18
47·1
2·9
19
50·0
2·9
20
53·0
3·0
21
56·0
3·0
22
59·1
3·1
23
62·2
3·1

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