{
  "url": "https://openlegislation.uk/air-quality-limit-values-scotland-regulations-2001/schedule-6/part-IV/paragraph-wrapper22n1",
  "json_url": "https://openlegislation.uk/air-quality-limit-values-scotland-regulations-2001/schedule-6/part-IV/paragraph-wrapper22n1.json",
  "legislation": "ssi/2001/224",
  "legislation_title": "The Air Quality Limit Values (Scotland) Regulations 2001",
  "legislation_url": "https://openlegislation.uk/air-quality-limit-values-scotland-regulations-2001",
  "path": "schedule/6/part/IV/paragraph/wrapper22n1",
  "kind": "paragraph",
  "number": null,
  "heading": null,
  "text": "The reference method for the sampling and measurement of PM10 will be that described in EN 12341 “Air Quality – Field Test Procedure to Demonstrate Reference Equivalence of Sampling Methods for the PM10 fraction of particulate matter\". The measurement principle is based on the collection on a filter of the PM10 fraction of ambient particulate matter and the gravimetric mass determination.",
  "extent": null,
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "M",
      "label": "M1",
      "text": "European Standards Institute “CEN\" publication reference BSEN 12341, obtainable from the British Standards Institute “BSI\" as for footnote (a) above"
    }
  ],
  "outstanding_effects": [
    {
      "type": "added (19.1.2003)",
      "affecting": "ssi/2002/556",
      "affecting_title": "The Air Quality Limit Values (Scotland) Amendment Regulations 2002"
    }
  ],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/ssi/2001/224/schedule/6/part/IV/paragraph/wrapper22n1",
    "retrieved_at": "2026-10-28T22:46:13.462583+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."
}