{
  "url": "https://openlegislation.uk/eu-directive-1983-514/annex/division-15/division-B/division-7",
  "json_url": "https://openlegislation.uk/eu-directive-1983-514/annex/division-15/division-B/division-7.json",
  "legislation": "eudr/1983/514",
  "legislation_title": "Third Commission Directive of 27 September 1983 on the approximation of the laws of the Member States relating to methods of analysis necessary for checking the composition of cosmetic products (83/514/EEC)",
  "legislation_url": "https://openlegislation.uk/eu-directive-1983-514",
  "path": "annex/division/15/division/B/division/7",
  "kind": "division",
  "number": "7",
  "heading": "GAS CHROMATOGRAPHY",
  "text": "The column must yield a resolution ‘R’ equal to, or better than, 1,5, where:\nlet: R = 2 d' r 2 - r 1 W 1 + W 2\nr1 and r2 retention times (in minutes),\nW1 and W2 peak widths at half height (in millimetres),\nd' the chart speed (in millimetres per minute).\nThe following gas chromatographic conditions have been found suitable:\nColumn stainless steel.\nLength 1,7 m.\nDiameter 3 mm.\nSupport:\nchromosorb WAW\nsieve analysis 80 to 100 mesh.\nStationary phase 10 % OV 17.\nTemperatures:\ncolumn 280 oC,\ninjector 280 oC,\ndetector 280 oC.\nCarrier gas: oxygen-free nitrogen.\nPressure 2,3 bar.\nFlow 30 ml/min.",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/eudr/1983/514/annex/division/15/division/B/division/7",
    "retrieved_at": "2026-11-01T15:23:36.810601+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."
}