# Commission Regulation (EEC) No 2568/91 of 11 July 1991 on the characteristics of olive oil and olive-residue oil and on the relevant methods of analysis, Division 2: PRINCIPLE OF THE METHOD

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

A sample is dissolved in the required solvent and the absorbance of the solution is measured at the specified wavelengths with reference to pure solvent.
The specific extinctions at 232 nm and 268 nm in iso-octane or 232 nm and 270 nm in cyclohexane are calculated for a concentration of 1 % w/v in a 10 mm cell.

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Source: https://www.legislation.gov.uk/eur/1991/2568/annex/IX/division/2 (the official version)
Page: https://openlegislation.uk/eu-regulation-1991-2568/annex-IX/division-2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.