{
  "url": "https://openlegislation.uk/air-quality-limit-values-wales-regulations-2001/schedule-6/part-II",
  "json_url": "https://openlegislation.uk/air-quality-limit-values-wales-regulations-2001/schedule-6/part-II.json",
  "legislation": "wsi/2001/2683",
  "legislation_title": "The Air Quality Limit Values (Wales) Regulations 2001",
  "legislation_url": "https://openlegislation.uk/air-quality-limit-values-wales-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": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/wsi/2001/2683/schedule/6/part/II",
    "retrieved_at": "2026-10-29T00:15:58.976500+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."
}