{
  "url": "https://openlegislation.uk/air-quality-limit-values-regulations-2001/schedule-6/part-II",
  "json_url": "https://openlegislation.uk/air-quality-limit-values-regulations-2001/schedule-6/part-II.json",
  "legislation": "uksi/2001/2315",
  "legislation_title": "The Air Quality Limit Values Regulations 2001",
  "legislation_url": "https://openlegislation.uk/air-quality-limit-values-regulations-2001",
  "path": "schedule/6/part/II",
  "kind": "part",
  "number": "II",
  "heading": "Reference method for the analysis of nitrogen dioxide and oxides of nitrogen",
  "text": "ISO 7996: 1985 Ambient air—determination of the mass concentrations of nitrogen oxides—chemiluminescence method.",
  "extent": null,
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "footnote",
      "label": "f1",
      "text": "Copies of these International Standards Organisation publications can be purchased from the British Standards Institution ‘ BSI ’ sales department either by telephone on 020-8996-9001 or by post from the BSI, Standards House, 389 Chiswick High Road, London W4 4AL."
    }
  ],
  "outstanding_effects": [
    {
      "type": "substituted",
      "affecting": "uksi/2002/3117",
      "affecting_title": "The Air Quality Limit Values (Amendment) Regulations 2002"
    },
    {
      "type": "inserted",
      "affecting": "uksi/2002/3117",
      "affecting_title": "The Air Quality Limit Values (Amendment) Regulations 2002"
    }
  ],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/uksi/2001/2315/schedule/6/part/II",
    "retrieved_at": "2026-10-29T07:45:21.655109+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."
}