# 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

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

Hexane or mixture of alkanes of b.p. interval 65 to 70 °C, distilled with rectifying column. Hexane may be replaced by iso-octane (2,2,4-trimethyl pentane in chromatography grade), provided that comparable precision values are achieved. The residue after evaporation of 100 ml of solvent may be controlled. Solvents with higher boiling point than n-hexane take longer to evaporate. However, they are preferred due to the toxicity of hexane.

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