{
  "url": "https://openlegislation.uk/eu-regulation-2011-1007/annex-VIII/chapter-3/division-1/division-I/division-I.8/division-I.8.2",
  "json_url": "https://openlegislation.uk/eu-regulation-2011-1007/annex-VIII/chapter-3/division-1/division-I/division-I.8/division-I.8.2.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/3/division/1/division/I/division/I.8/division/I.8.2",
  "kind": "division",
  "number": "I.8.2",
  "heading": null,
  "text": "Calculation of the percentage of each component with adjustment by agreed allowances and, where appropriate, correction factors for losses in mass during pre-treatment operations:\nGiven:\nA = 1 + a 1 + b 1 100 B = 1 + a 2 + b 2 100 C = 1 + a 3 + b 3 100\nthen:\nP 1 A % = P 1 A P 1 A + P 2 B + P 3 C × 100 P 2 A % = P 2 B P 1 A + P 2 B + P 3 C × 100 P 3 A % = P 3 C P 1 A + P 2 B + P 3 C × 100 P1A% is the percentage of the first clean dry component, including moisture content and loss in mass during pre-treatment,\nP2A% is the percentage of the second clean dry component, including moisture content and loss in mass during pre-treatment,\nP3A% is the percentage of the third clean dry component, including moisture content and loss in mass during pre-treatment,\nP1 is the percentage of the first clean dry component obtained by one of the formulae given in I.8.1,\nP2 is the percentage of the second clean dry component obtained by one of the formulae given in I.8.1,\nP3 is the percentage of the third clean dry component obtained by one of the formulae given in I.8.1,\na1 is the agreed allowance of the first component,\na2 is the agreed allowance of the second component,\na3 is the agreed allowance of the third component,\nb1 is the percentage of loss in mass of the first component during pre-treatment,\nb2 is the percentage of loss in mass of the second component during pre-treatment,\nb3 is the percentage of loss in mass of the third component during pre-treatment.\nWhere a special pre-treatment is used the values b1, b2 and b3 shall be determined, if possible, by submitting each of the pure fibre constituents to the pre-treatment applied in the analysis. Pure fibres are those free from all non-fibrous material except those which they normally contain (either naturally or because of the manufacturing process), in the state (unbleached, bleached) in which they are found in the material to be analysed.\nWhere no clean separate constituent fibres used in the manufacture of the material to be analysed are available, average values of b1, b2 and b3 as obtained from tests performed on clean fibres similar to those in the mixture under examination, must be used.\nIf normal pre-treatment by extraction with light petroleum and water is applied, correction factors b1, b2 and b3 may generally be ignored, except in the case of unbleached cotton, unbleached flax (or linen) and unbleached hemp where the loss due to pre-treatment is usually accepted as 4 % and in the case of polypropylene as 1 %.\nIn the case of other fibres, losses due to pre-treatment are usually disregarded in calculations.",
  "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/3/division/1/division/I/division/I.8/division/I.8.2",
    "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."
}