# 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 6.2: Measurement by saccharimeter

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

Starch content (%)=2 000α20°D×2 N×0,665×S−S'100−26,6 N×S−S'α20°DSTotal optical rotation in saccharimeter degrees
S'Optical rotation in saccharimeter degrees of the substances soluble in 40 % (v/v) ethanol
Nweight (g) of saccharose in 100 ml of water yielding an optical rotation of 100 saccharimeter degrees when measured using a 200 mm tube
16,29 g for the French saccharimeters
26,0 g for the German saccharimeters
20,0 g for mixed saccharimeters.
α20°DSpecific optical rotation of pure starch (see 6.1)

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Source: https://www.legislation.gov.uk/eur/2009/152/annex/III/division/L/division/1/division/6/division/6.2 (the official version)
Page: https://openlegislation.uk/eu-regulation-2009-152/annex-III/division-L/division-1/division-6/division-6.2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.