{
  "url": "https://openlegislation.uk/eu-regulation-1991-2568/annex-XX/division-5/division-5.5/division-5.5.1",
  "json_url": "https://openlegislation.uk/eu-regulation-1991-2568/annex-XX/division-5/division-5.5/division-5.5.1.json",
  "legislation": "eur/1991/2568",
  "legislation_title": "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",
  "legislation_url": "https://openlegislation.uk/eu-regulation-1991-2568",
  "path": "annex/XX/division/5/division/5.5/division/5.5.1",
  "kind": "division",
  "number": "5.5.1",
  "heading": "Quantitative analysis of the methyl and ethyl esters",
  "text": "With the aid of the integrator, determine the areas of the peaks corresponding to the methyl heptadecanoate internal standard, the methyl esters of the C 16 and C 18 fatty acids and the ethyl esters of the C 16 and C 18 fatty acids.\nDetermine the content of each alkyl ester, in mg/kg of fat, as follows:\nEster, mg ∕ kg = A x × m s. × 1000 A s × m\nwhere:\nA x area corresponding to the peak for the individual C 16 and C 18 ester, in computer counts\nA s area corresponding to the peak for the methyl heptadecanoate internal standard, in computer counts\nm s mass of the methyl heptadecanoate internal standard added, in milligrams;\nm mass of the sample taken for determination, in grams.",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "F",
      "label": "F1",
      "text": "Inserted by Commission Regulation (EU) No 61/2011 of 24 January 2011 amending Regulation (EEC) No 2568/91 on the characteristics of olive oil and olive-residue oil and on the relevant methods of analysis."
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/eur/1991/2568/annex/XX/division/5/division/5.5/division/5.5.1",
    "retrieved_at": "2026-11-01T15:01:50.986318+00:00"
  },
  "licence": "Open Government Licence v3.0",
  "licence_url": "https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
  "attribution": "Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives."
}