{
  "url": "https://openlegislation.uk/eu-regulation-1991-2568/annex-IV/appendix",
  "json_url": "https://openlegislation.uk/eu-regulation-1991-2568/annex-IV/appendix.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/IV/appendix",
  "kind": "appendix",
  "number": null,
  "heading": null,
  "text": "Determination of the linear velocity of the gas\nInject 1-3 μl methane (or propane) into the GC apparatus after it has been regulated to normal operating conditions. Measure the time it takes for the gas to flow through the column from the time it is injected to the time the peak appears (t M ).\nThe linear velocity in cm/s is given by the formula L/t M , where L is the length of the column in cm and t M the time measured in seconds.",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "F",
      "label": "F1",
      "text": "Substituted by Commission Regulation (EC) No 702/2007 of 21 June 2007 amending Commission 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/IV/appendix",
    "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."
}