{
  "url": "https://openlegislation.uk/eu-regulation-1991-2568/annex-XIX/part-1/division-4",
  "json_url": "https://openlegislation.uk/eu-regulation-1991-2568/annex-XIX/part-1/division-4.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/XIX/part/1/division/4",
  "kind": "division",
  "number": "4",
  "heading": "REAGENTS",
  "text": "4.1. Potassium hydroxide minimum titre 85 %.\n4.2. Potassium hydroxide ethanolic solution, approximately 2 M.\nDissolve 130 g of potassium hydroxide (4.1) with cooling in 200 ml of distilled water and then make up to one litre with ethanol (4.7). Keep the solution in well-stoppered dark glass bottles and stored maximum 2 days.\n4.3. Ethyl ether, for analysis quality.\n4.4. Anhydrous sodium sulphate, for analysis quality.\n4.5. Acetone, for chromatography quality.\n4.6. Ethyl ether, for chromatography quality.\n4.7. Ethanol of analytical quality.\n4.8. Ethyl acetate of analytical quality.\n4.9. Internal standard, α-cholestanol, purity more than 99 % (purity must be checked by GC analysis).\n4.10. Internal standard solution of α-cholestanol, 0,2 solution (m/V) in ethyl acetate (4.8).\n4.11. Phenolphthalein solution, 10 g/L in ethanol (4.7).\n4.12. A 0,1 % (m/v) solution of 1-eicosanol in ethyl acetate (internal standard).",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "F",
      "label": "F1",
      "text": "Substituted by Commission Implementing Regulation (EU) 2019/1604 of 27 September 2019 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/XIX/part/1/division/4",
    "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."
}