{
  "url": "https://openlegislation.uk/fertilisers-sampling-and-analysis-regulations-northern-ireland-1996/schedule-2/part-I/chapter-25b./paragraph-7",
  "json_url": "https://openlegislation.uk/fertilisers-sampling-and-analysis-regulations-northern-ireland-1996/schedule-2/part-I/chapter-25b./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/I/chapter/25b./paragraph/7",
  "kind": "paragraph",
  "number": "7",
  "heading": "PROCEDURE",
  "text": "Test sample\n7.1 Take a quantity of fertiliser weighing between 2 and 10 g depending on the declared content of the element in the product. The following table shall be used to obtain a final solution which, after appropriate dilution, will be within the measuring range for each method. The samples should be weighed to within 1 mg.\nDeclared content of trace element in the fertiliser (%)\n< 0.01\n0.01-< 5\n≥ 5-10\nMass of test sample (g)\n10\n5\n2\nMass of element in the sample (mg)\n1\n0.5-250\n100-200\nVolume of extract V (ml)\n250\n500\n500\nConcentration of element in extract (mg/l)\n4\n1-500\n200-400\nPlace the sample in a 250 or 500 ml flask (according to the Table).\nPreparation of the solution\n7.2 Add about 200 ml of water to the 250 ml flask or 400 ml of water to the 500 ml flask.\nStopper the flask well. Shake vigorously by hand to disperse the sample, then place the flask on the shaker and shake for 30 minutes.\nMake up to volume with water and mix thoroughly.\nPreparation of the test solution\n7.3 Filter immediately into a clean, dry flask. Stopper the flask. Carry out the determination immediately after filtering.\nNote:\nIf the filtrate gradually becomes cloudy, make another extraction following 7.1 and 7.2 in a flask of volume Ve. Filter into a calibrated flask of volume W which has previously been dried and has received 5.00 ml of dilute hydrochloric acid (4.1). Stop the filtration at the exact moment when the calibration mark is reached. Mix thoroughly.\nUnder these conditions the value of V in the expression of results is:\nV=Ve×W/(W-5).\nThe dilution in the expression of results depend on this value of V.",
  "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/25b./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."
}