{
 "url": "https://activatedigital.ai/knowledge/fields/fibre-composition",
 "title": "Fibre composition: the four rules and two tolerances that decide it",
 "description": "Fibre composition is percentages over fibre mass, not product mass, and they need not total 100. The four rules that bind the field and the evidence for it.",
 "territory": "dpp",
 "category": null,
 "direct_answer": "A fibre composition is a set of percentages over the fibre mass of the product. Two things follow from that sentence and both are routinely lost: the denominator is fibre mass rather than product mass, and the percentages are not forced to add to 100.",
 "last_verified": "2026-08-28",
 "verified_label": "Sources as at",
 "datePublished": "2026-08-28",
 "dateModified": "2026-08-28",
 "legislation": [],
 "primary_sources": [],
 "glossary_terms": [
  "https://activatedigital.ai/knowledge/glossary#delegated-act",
  "https://activatedigital.ai/knowledge/glossary#economic-operator"
 ],
 "watch": [],
 "decisions": [],
 "alternates": {
  "html": "https://activatedigital.ai/knowledge/fields/fibre-composition",
  "markdown": "https://activatedigital.ai/knowledge/fields/fibre-composition.md",
  "json": "https://activatedigital.ai/knowledge/fields/fibre-composition.json"
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}