# 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: Calculation of results

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

The crude fibre content as a percentage of the sample is given by the expression:
X=m0−m1×100mwhere:
mweight of sample in g,
m0 loss of weight after ashing during the determination, in g,
m1 loss of weight after ashing during the blank test, in g.

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