{
  "url": "https://openlegislation.uk/eu-regulation-1991-2568/annex-XII/division-9/division-9.5",
  "json_url": "https://openlegislation.uk/eu-regulation-1991-2568/annex-XII/division-9/division-9.5.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/XII/division/9/division/9.5",
  "kind": "division",
  "number": "9.5",
  "heading": "Criteria for the acceptance and rejection of duplicates",
  "text": "The normalised error, defined below, shall be used to determine whether the two results of a duplicate analysis are homogenous or statistically acceptable:\nE n = Me 1 − Me 2 2 U 2 1 + U 2 2\nWhere Me 1 and Me 2 are the medians of the two duplicates (respectively first and second analysis) and U 1 and U 2 are the expanded uncertainties obtained for the two values, calculated as follows as specified in Appendix:\nU 1 = c × s * and s * = CV r × Me 1 100\nFor the expanded uncertainty, c = 1,96; hence:\nU 1 = 0,0196 × CV r × M e1\nwhere CV r is the robust coefficient of variation.\nFor it to be stated that the two values obtained are not statistically different, E n must be equal to or less than 1,0.",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "F",
      "label": "F1",
      "text": "Substituted by Commission Implementing Regulation (EU) No 1348/2013 of 16 December 2013 amending Regulation (EEC) No 2568/91 on the characteristics of olive oil and olive-residue oil and on the relevant methods of analysis."
    },
    {
      "type": "F",
      "label": "F2",
      "text": "Inserted by Commission Implementing Regulation (EU) 2016/1227 of 27 July 2016 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/XII/division/9/division/9.5",
    "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."
}