{
  "url": "https://openlegislation.uk/eu-regulation-2009-761/annex-VI/division-2/division-2.1",
  "json_url": "https://openlegislation.uk/eu-regulation-2009-761/annex-VI/division-2/division-2.1.json",
  "legislation": "eur/2009/761",
  "legislation_title": "Commission Regulation (EC) No 761/2009 of 23 July 2009 amending, for the purpose of its adaptation to technical progress, Regulation (EC) No 440/2008 laying down test methods pursuant to Regulation (EC) No 1907/2006 of the European Parliament and of the Council on the Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH) (Text with EEA relevance)",
  "legislation_url": "https://openlegislation.uk/eu-regulation-2009-761",
  "path": "annex/VI/division/2/division/2.1",
  "kind": "division",
  "number": "2.1",
  "heading": "DOUBLING TIME",
  "text": "To determine the doubling time (Td) of frond number and adherence to this validity criterion by the study (section 1.6), the following formula is used with data obtained from the control vessels:\nTd = ln 2/μ\nwhere μ is the average specific growth rate determined as described in first and second paragraph in section 2.2.1.",
  "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/2009/761/annex/VI/division/2/division/2.1",
    "retrieved_at": "2026-11-01T14:51:19.625001+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."
}