{
  "url": "https://openlegislation.uk/eu-regulation-2009-1222/annex-V/division-3/division-3.2/division-b",
  "json_url": "https://openlegislation.uk/eu-regulation-2009-1222/annex-V/division-3/division-3.2/division-b.json",
  "legislation": "eur/2009/1222",
  "legislation_title": "Regulation (EC) No 1222/2009 of the European Parliament and of the Council of 25 November 2009 on the labelling of tyres with respect to fuel efficiency and other essential parameters (Text with EEA relevance)",
  "legislation_url": "https://openlegislation.uk/eu-regulation-2009-1222",
  "path": "annex/V/division/3/division/3.2/division/b",
  "kind": "division",
  "number": "(b)",
  "heading": "ASTM E 1136 Standard Reference Test Tyre (SRTT14″) method",
  "text": "By derogation with point (4) of section 2, this method uses the reference tyre that has the characteristics indicated in ASTM E 1136-93 (Reapproved 2003) and referred to as SRTT14″ .\nThe average peak braking force coefficient ( μ peak,ave ) of the SRTT14″ shall be 0,7 ± 0,1 at 65 km/h.\nThe average peak braking force coefficient ( μ peak,ave ) of the SRTT14″ shall be corrected by the wetted road surface temperature as follows:\npeak braking force coefficient ( μ peak,ave ) = peak braking force coefficient (measured) + temperature correction\ntemperature correction = 0,0035 × ( t – 20)\nwhere t is the wetted road surface temperature in degrees Celsius.",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "F",
      "label": "F1",
      "text": "Inserted by Commission Regulation (EU) No 228/2011 of 7 March 2011 amending Regulation (EC) No 1222/2009 of the European Parliament and of the Council with regard to the wet grip testing method for C1 tyres (Text with EEA relevance)."
    },
    {
      "type": "footnote",
      "label": "f1",
      "text": "The size of the ASTM E 1136 SRTT is P195/75R14."
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/eur/2009/1222/annex/V/division/3/division/3.2/division/b",
    "retrieved_at": "2026-11-01T14:51:03.606681+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."
}