{
  "url": "https://openlegislation.uk/ammonium-nitrate-materials-high-nitrogen-content-safety-regulations-2003/schedule-2/part-2/paragraph-2",
  "json_url": "https://openlegislation.uk/ammonium-nitrate-materials-high-nitrogen-content-safety-regulations-2003/schedule-2/part-2/paragraph-2.json",
  "legislation": "uksi/2003/1082",
  "legislation_title": "The Ammonium Nitrate Materials (High Nitrogen Content) Safety Regulations 2003",
  "legislation_url": "https://openlegislation.uk/ammonium-nitrate-materials-high-nitrogen-content-safety-regulations-2003",
  "path": "schedule/2/part/2/paragraph/2",
  "kind": "paragraph",
  "number": "2",
  "heading": null,
  "text": "Materials\n(a) Plastic explosive containing 83 to 86% penthrite (Note 2)\nDensity: 1,500 to 1,600 kg/m3\nDetonation velocity: 7,300 to 7,700 m/s\nMass: 500 ± 1 gram.\n(b) Seven lengths of flexible detonating cord with non-metallic sleeve\nFilling mass: 11 to 13 g/m\nLength of each cord: 400 ± 2 mm.\n(c) Compressed pellet of secondary explosive, recessed to receive detonator\n(d) Explosive: hexogen/wax 95/5 or tetryl or similar secondary explosive, with or without added graphite.\nDensity: 1,500 to 1,600 kg/m3\nDiameter: 19 to 21 mm\nHeight: 19 to 23 mm\nCentral recess to receive detonator: diameter 7 to 7.3 mm, depth 12 mm.\n(e) Seamless steel tube as specified in ISO 65 of the International Organisation for Standardisation (carbon steel tubes suitable for screwing in accordance with ISO 7-1 -Pipe threads where pressure tight joints are made on threads)—Heavy Series, with nominal dimensions DN 100 mm\nOutside diameter: 113.1 to 115.0 mm\nWall thickness: 5.0 to 6.5 mm\nLength: 1,005 (± 2) mm.\n(f) Bottom plate\nMaterial: steel of good weldable quality\nDimensions: 160 × 160 mm\nThickness: 5 to 6 mm.\n(g) Six lead cylinders\nDiameter: 50 (± 1) mm\nHeight: 100 to 101 mm\nMaterials: soft lead, at least 99.5% purity.\n(h) Steel block\nLength: at least 1,000 mm\nWidth: at least 150 mm\nHeight: at least 150 mm\nMass: at least 300 kg if there is no firm base for the steel block.\n(i) Plastic or cardboard cylinder for booster charge\nWall thickness: 1.5 to 2.5 mm\nInternal diameter: 92 to 96 mm\nHeight: 64 to 67 mm.\n(j) Detonator (electric or non-electric) with initiation force 8 to 10\n(k) Wooden disc\nDiameter: 92 to 96 mm. Diameter to be matched to the internal diameter of the plastic or cardboard cylinder.\nThickness: 20 mm.\n(l) Wooden rod of same dimensions as detonator.\n(m) Dressmaking pins (maximum length 20 mm).",
  "extent": null,
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "M",
      "label": "M1",
      "text": "ISO 65:1981."
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/uksi/2003/1082/schedule/2/part/2/paragraph/2",
    "retrieved_at": "2026-10-29T06:25:41.908402+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."
}