{
  "url": "https://openlegislation.uk/fertilisers-sampling-and-analysis-regulations-northern-ireland-1996/schedule-2/part-I/chapter-25d./paragraph-8",
  "json_url": "https://openlegislation.uk/fertilisers-sampling-and-analysis-regulations-northern-ireland-1996/schedule-2/part-I/chapter-25d./paragraph-8.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/25d./paragraph/8",
  "kind": "paragraph",
  "number": "8",
  "heading": "EXPRESSION OF RESULTS",
  "text": "The percentage of trace element (E) in the fertiliser is equal to:\nE(%)=[(xs-xb)×V×D]/(M×104). If method (25c) has been used:\nE(%)=[(xs-xb)×V×2D]/(M×104), where:\nE = the amount of the trace element determined, expressed as a percentage of the fertiliser;\nxs = the concentration of the test solution (6.2), in μg/ml;\nxb = the concentration of the blank solution (7.1), in μg/ml;\nV = the volume of the extract obtained by Method 25a or 25b, in ml;\nD = the factor corresponding to the dilution carried out in (6.2);\nM = the mass of the test sample taken in accordance with Method 25a or 25b in grams.\nCalculation of dilution factor D:\nIf (a1), (a2), (a3), . . . , (ai) and (a) are the aliquot portions and (v1), (v2), (v3), . . . , (vi) and (100) are the volumes in ml corresponding to their respective dilutions, the dilution factor D will be equal to:\nD=(v1/a1)×(v2/a2)×(v3/a3)x . . . x(vi/ai)×(100/a).",
  "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/25d./paragraph/8",
    "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."
}