{
  "url": "https://openlegislation.uk/eu-directive-2004-73/annex-n2/division-A.21/division-2/division-2.1",
  "json_url": "https://openlegislation.uk/eu-directive-2004-73/annex-n2/division-A.21/division-2/division-2.1.json",
  "legislation": "eudr/2004/73",
  "legislation_title": "Commission Directive 2004/73/EC of 29 April 2004 adapting to technical progress for the twenty-ninth time Council Directive 67/548/EEC on the approximation of the laws, regulations and administrative provisions relating to the classification, packaging and labelling of dangerous substances (Text with EEA relevance)",
  "legislation_url": "https://openlegislation.uk/eu-directive-2004-73",
  "path": "annex/n2/division/A.21/division/2/division/2.1",
  "kind": "division",
  "number": "2.1",
  "heading": "TREATMENT OF RESULTS",
  "text": "The mean pressure rise times for both the test substance and the reference substances(s) are calculated.\nThe mean pressure rise time for the tests with an inert substance (if performed) is calculated.\nSome examples of results are shown in Table 1\nTable 1\nExamples of results\nMean value from interlaboratory comparative trials\nMaximum pressure of 2070 kPa not reached\nSaturated solutions should be prepared at 20 oC\nSee reference (1) for classification under the UN transport scheme,\nSubstance\nMean pressure rise time for a 1:1 mixture with celulose (ms)\nAmmonium dichromate, saturated aqueous solution\n20800\nCalcium nitrate, saturated aqueous solution\n6700\nFerric nitrate, saturated aqueous solution\n4133\nLithium perchlorate, saturated aqueous solution\n1686\nMagnesium perchlorate, saturated aqueous solution\n777\nNickel nitrate, saturated aqueous solution\n6250\nNitric acid, 65 %\n4767\nPerchloric acid, 50 %\n121\nPerchloric acid, 55 %\n59\nPotassium nitrate, 30 % aqueous solution\n26690\nSilver nitrate, saturated aqueous solution\n-\nSodium chlorate, 40 % aqueous solution\n2555\nSodium nitrate, 45 % aqueous solution\n4133\nInert Substance\nWater:cellulose\n-",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "footnote",
      "label": "f1",
      "text": "See reference (1) for classification under the UN transport scheme,"
    },
    {
      "type": "footnote",
      "label": "f2",
      "text": "Saturated solutions should be prepared at 20 oC"
    },
    {
      "type": "footnote",
      "label": "f3",
      "text": "Mean value from interlaboratory comparative trials"
    },
    {
      "type": "footnote",
      "label": "f4",
      "text": "Maximum pressure of 2070 kPa not reached"
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/eudr/2004/73/annex/n2/division/A.21/division/2/division/2.1",
    "retrieved_at": "2026-11-01T15:22:47.605967+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."
}