{
  "url": "https://openlegislation.uk/coal-mines-precautions-against-inflammable-dust-order-1956/schedule-n2/paragraph-1",
  "json_url": "https://openlegislation.uk/coal-mines-precautions-against-inflammable-dust-order-1956/schedule-n2/paragraph-1.json",
  "legislation": "uksi/1956/1769",
  "legislation_title": "The Coal Mines (Precautions against Inflammable Dust) Order 1956",
  "legislation_url": "https://openlegislation.uk/coal-mines-precautions-against-inflammable-dust-order-1956",
  "path": "schedule/n2/paragraph/1",
  "kind": "paragraph",
  "number": "1",
  "heading": null,
  "text": "For the purposes of regulation five the minimum percentage of incombustible matter in relation to any coal shall be determined by reference to the volatile matter content of that coal calculated on an ash-free dry basis in accordance with the following table—\nVolatile matter content of coal (Per cent.)\nMinimum percentage of incombustible matter required\nNot exceeding\n20\n50\n22\n55\n25\n60\n27\n65\n30\n68\n32\n70\n35\n72\nExceeding\n35\n75",
  "extent": null,
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/uksi/1956/1769/schedule/n2/paragraph/1",
    "retrieved_at": "2026-10-30T01:15:32.967687+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."
}