# 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

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

Addition of a suitable internal standard to the fat or oil, then fractionation by chromatography on a hydrated silica gel column. Recovery under the test conditions of the fraction eluted first (the polarity of which is less than that of the triglycerides), then direct analysis by capillary column gas chromatography.

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