{
  "url": "https://openlegislation.uk/eu-regulation-2008-692/annex-VII/division-2/division-3/division-2.3.1/division-2.3.1.5",
  "json_url": "https://openlegislation.uk/eu-regulation-2008-692/annex-VII/division-2/division-3/division-2.3.1/division-2.3.1.5.json",
  "legislation": "eur/2008/692",
  "legislation_title": "Commission Regulation (EC) No 692/2008 of 18 July 2008 implementing and amending Regulation (EC) No 715/2007 of the European Parliament and of the Council on type-approval of motor vehicles with respect to emissions from light passenger and commercial vehicles (Euro 5 and Euro 6) and on access to vehicle repair and maintenance information (Text with EEA relevance)",
  "legislation_url": "https://openlegislation.uk/eu-regulation-2008-692",
  "path": "annex/VII/division/2/division/3/division/2.3.1/division/2.3.1.5",
  "kind": "division",
  "number": "2.3.1.5",
  "heading": null,
  "text": "Effective reference temperature on the SBC. The effective reference temperature of the standard bench cycle (SBC) shall be determined for the actual catalyst system design and actual ageing bench which will be used using the following procedures:\n(a) Measure time-at-temperature data in the catalyst system on the catalyst ageing bench following the SBC. Catalyst temperature shall be measured at the highest temperature location of the hottest catalyst in the system. Alternatively, the temperature may be measured at another location providing that it is adjusted to represent the temperature measured at the hottest location.\nCatalyst temperature shall be measured at a minimum rate of one hertz (one measurement per second) during at least 20 minutes of bench ageing. The measured catalyst temperature results shall be tabulated into a histogram with temperature groups of no larger than 10 °C.\n(b) The BAT equation shall be used to calculate the effective reference temperature by iterative changes to the reference temperature (Tr) until the calculated ageing time equals or exceeds the actual time represented in the catalyst temperature histogram. The resulting temperature is the effective reference temperature on the SBC for that catalyst system and ageing bench.",
  "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/2008/692/annex/VII/division/2/division/3/division/2.3.1/division/2.3.1.5",
    "retrieved_at": "2026-11-01T14:52:09.943760+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."
}