# 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 5.1.1

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

Oils with a free acidity of less than 3 % do not need to be neutralised before chromatography on a silica gel column. Oils with a free acidity of more than 3 % must be neutralised as per point 5.1.1.1.

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Source: https://www.legislation.gov.uk/eur/1991/2568/annex/VII/division/5/division/5.1/division/5.1.1 (the official version)
Page: https://openlegislation.uk/eu-regulation-1991-2568/annex-VII/division-5/division-5.1/division-5.1.1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.