# 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 content of carbonates, expressed as calcium carbonate, is calculated by using the formula:
X=V×100V1×2mwhere:
X% (w/w) of carbonates in the sample, expressed as calcium carbonate
Vml of CO2 released by the portion of the sample.
V1 ml of CO2 released by 0,5 g of CaCO3.
mweight, in grammes, of the portion of the sample.

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