{
  "url": "https://openlegislation.uk/fertilisers-sampling-and-analysis-regulations-northern-ireland-1996/schedule-2/part-I/chapter-20./paragraph-9",
  "json_url": "https://openlegislation.uk/fertilisers-sampling-and-analysis-regulations-northern-ireland-1996/schedule-2/part-I/chapter-20./paragraph-9.json",
  "legislation": "nisr/1996/513",
  "legislation_title": "Fertilisers (Sampling and Analysis) Regulations (Northern Ireland) 1996",
  "legislation_url": "https://openlegislation.uk/fertilisers-sampling-and-analysis-regulations-northern-ireland-1996",
  "path": "schedule/2/part/I/chapter/20./paragraph/9",
  "kind": "paragraph",
  "number": "9",
  "heading": "EXPRESSION OF RESULTS",
  "text": "The calcium (Ca) content of the fertiliser is as follows:\nCa(%)=n×0.2004×t0.02×v1v2×m where:\nn = the volume of 0.2 M permanganate used, in millilitres,\nm = the mass of the test sample in grams,\nv2 = the aliquot volume in millilitres,\nv1 = the volume of the extraction solution in millilitres,\nt = the molarity of the permanganate solution in moles per litre.\nCaO (%) = Ca (%) × 1.400.",
  "extent": null,
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/nisr/1996/513/schedule/2/part/I/chapter/20./paragraph/9",
    "retrieved_at": "2026-10-29T02:32:40.012993+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."
}