{
  "url": "https://openlegislation.uk/fertilisers-sampling-and-analysis-regulations-northern-ireland-1996/schedule-2/part-II/chapter-9./paragraph-7",
  "json_url": "https://openlegislation.uk/fertilisers-sampling-and-analysis-regulations-northern-ireland-1996/schedule-2/part-II/chapter-9./paragraph-7.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/II/chapter/9./paragraph/7",
  "kind": "paragraph",
  "number": "7",
  "heading": "EXPRESSION OF RESULTS",
  "text": "Original dry mass\n7.1 Calculate the original dry mass (Md) of material, using the following formula.\nMd=M×DM where:\nM is the mass of the test portion taken for the sieving test.\nDM is the percentage dry matter obtained in 6.\nSieve fraction\n7.2 Calculate the percentage of material retained on each sieve, using the following formula:\nXn=Mn/Md×100 where:\nXn is the percentage by mass retained on sieve n.\nMn is the dry mass retained on sieve n.\nMd is the dry mass of the test portion.\nReport the percentages of material (100 − Xn) which will pass through each sieve.\nCarry out two single tests on separate test portions prepared from the same original sample. Record the mean of the two individual results for each sieve as the result (corrected if necessary for the presence of lumps (4.1)).",
  "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/II/chapter/9./paragraph/7",
    "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."
}