# Commission Regulation (EC) No 2870/2000 of 19 December 2000 laying down Community reference methods for the analysis of spirits drinks, Division 10: Calculation of results

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

The formula for the calculation of the concentration of trans-anethole is the following:
c i = C is * (area or height i ∕ area or height is )*RF i
where:
c i is the unknown trans-anethole concentration
C is is the concentration of internal standard in the unknown (4.5.2)
Area or height i is the area or height of the trans-anethole peak
Area or height is the area or height of the internal standard peak
RF i is the response coefficient (calculated as in 9.1)
The trans-anethole concentration is expressed as grams per litre, to one decimal place.

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Source: https://www.legislation.gov.uk/eur/2000/2870/annex/division/V/division/10 (the official version)
Page: https://openlegislation.uk/eu-regulation-2000-2870/annex/division-V/division-10
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.