{
  "url": "https://openlegislation.uk/radioactive-material-road-transport-great-britain-regulations-1996/schedule-15/part-II/paragraph-9",
  "json_url": "https://openlegislation.uk/radioactive-material-road-transport-great-britain-regulations-1996/schedule-15/part-II/paragraph-9.json",
  "legislation": "uksi/1996/1350",
  "legislation_title": "The Radioactive Material (Road Transport) (Great Britain) Regulations 1996",
  "legislation_url": "https://openlegislation.uk/radioactive-material-road-transport-great-britain-regulations-1996",
  "path": "schedule/15/part/II/paragraph/9",
  "kind": "paragraph",
  "number": "9",
  "heading": "Leaching and volumetric leakage assessment methods",
  "text": "For specimens which comprise or simulate indispersable solid material, a leaching assessment shall be performed as follows:\n(a) The specimen shall be immersed for 7 days in water at ambient temperature. The volume of water to be used in the test shall be sufficient to ensure that at the end of the 7-day test period, the free volume of the unabsorbed and unreacted water remaining shall be at least 10% of the volume of the solid test sample itself. The water shall have an initial pH of 6–8 and a maximum conductivity of 1 mS/m at 20°C.\n(b) The water with specimen shall then be heated to a temperature of (50±5)°C and maintained at this temperature for 4 hours.\n(c) The activity of the water shall then be determined.\n(d) The specimen shall then be stored for at least 7 days in still air of relative humidity not less than 90% at 30°C.\n(e) The specimen shall then be immersed in water of the same specification as in (a) above and the water with the specimen heated to (50±5)°C and maintained at this temperature for 4 hours.\n(f) The activity of the water shall then be determined.",
  "extent": null,
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/uksi/1996/1350/schedule/15/part/II/paragraph/9",
    "retrieved_at": "2026-10-29T12:43:20.628336+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."
}