{
  "url": "https://openlegislation.uk/eu-regulation-2011-1007/annex-VIII/chapter-2/division-1/division-IV/division-7/division-4",
  "json_url": "https://openlegislation.uk/eu-regulation-2011-1007/annex-VIII/chapter-2/division-1/division-IV/division-7/division-4.json",
  "legislation": "eur/2011/1007",
  "legislation_title": "Regulation (EU) No 1007/2011 of the European Parliament and of the Council of 27 September 2011 on textile fibre names and related labelling and marking of the fibre composition of textile products and repealing Council Directive 73/44/EEC and Directives 96/73/EC and 2008/121/EC of the European Parliament and of the Council (Text with EEA relevance)",
  "legislation_url": "https://openlegislation.uk/eu-regulation-2011-1007",
  "path": "annex/VIII/chapter/2/division/1/division/IV/division/7/division/4",
  "kind": "division",
  "number": "4",
  "heading": "TEST PROCEDURE",
  "text": "Follow the procedure described in the general instructions and proceed as follows:\nTo the specimen contained in the glass-stoppered conical flask of at least 500 ml capacity, add 200 ml of 75 % sulphuric acid per gram of specimen, insert the stopper and carefully shake the flask to wet out the specimen.\nMaintain the flask at 50 ± 5 °C for 1 hour, shaking it at regular intervals of approximately 10 minutes. Filter the contents of the flask through the weighed filter crucible by means of suction. Transfer any residual fibres by washing out the flask with a little 75 % sulphuric acid. Drain the crucible with suction and wash the residue on the filter once by filling the crucible with a fresh portion of sulphuric acid. Do not apply suction until the acid has drained under gravity.\nWash the residue successively several times with cold water, twice with dilute ammonia solution, and then thoroughly with cold water, draining the crucible with suction after each addition. Do not apply suction until each washing liquor has drained under gravity. Finally, drain the remaining liquid from the crucible with suction, dry the crucible and residue, and cool and weigh them.",
  "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/2011/1007/annex/VIII/chapter/2/division/1/division/IV/division/7/division/4",
    "retrieved_at": "2026-11-01T14:49:51.401191+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."
}