{
  "url": "https://openlegislation.uk/eu-regulation-2009-152/annex-IV/division-G/division-5/division-5.2/division-5.2.2",
  "json_url": "https://openlegislation.uk/eu-regulation-2009-152/annex-IV/division-G/division-5/division-5.2/division-5.2.2.json",
  "legislation": "eur/2009/152",
  "legislation_title": "Commission Regulation (EC) No 152/2009 of 27 January 2009 laying down the methods of sampling and analysis for the official control of feed (Text with EEA relevance)",
  "legislation_url": "https://openlegislation.uk/eu-regulation-2009-152",
  "path": "annex/IV/division/G/division/5/division/5.2/division/5.2.2",
  "kind": "division",
  "number": "5.2.2",
  "heading": "Premixtures",
  "text": "Weigh to the nearest 0,001 g about 2 g of the unground premix into a 250 ml graduated flask. Add 100,0 ml of acidified methanol (3.8) and swirl to disperse. Place the flask and contents in an ultrasonic bath (4.1) at approximately 40 oC for 20 minutes, then remove and cool to room temperature. Dilute to the mark with acidified methanol (3.8) and mix thoroughly. Allow to stand for 1 hour until the suspended matter has settled, then filter an aliquot portion through a 0,45 μm membrane filter (4.2). Dilute an appropriate volume of the clear filtrate with acidified methanol (3.8) to produce a final test solution containing about 4 μg/ml of lasalocid sodium. Proceed to the HPLC determination (5.3).",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/eur/2009/152/annex/IV/division/G/division/5/division/5.2/division/5.2.2",
    "retrieved_at": "2026-11-01T14:51:38.610873+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."
}