{ "url": "https://openlegislation.uk/eu-regulation-2011-566/annex-I/division-5", "json_url": "https://openlegislation.uk/eu-regulation-2011-566/annex-I/division-5.json", "legislation": "eur/2011/566", "legislation_title": "Commission Regulation (EU) No 566/2011 of 8 June 2011 amending Regulation (EC) No 715/2007 of the European Parliament and of the Council and Commission Regulation (EC) No 692/2008 as regards access to vehicle repair and maintenance information (Text with EEA relevance)", "legislation_url": "https://openlegislation.uk/eu-regulation-2011-566", "path": "annex/I/division/5", "kind": "division", "number": "(5)", "heading": "at the end of Annex IX, Section B, the text ‘Reference fuel specification to be developed in advance of the dates set out in Article 10(6) of Regulation (EC) No 715/2007’ shall be replaced by the following table:", "text": "The values referred to in the specifications are “true values”. When establishing the value limits, the terms of ISO 4259 Petroleum products — Determination and application of precision data in relation to methods of test were applied. When fixing a minimum value, a minimum difference of 2R above zero was taken into account. When fixing a maximum and minimum value, the minimum difference used was 4R (R = reproducibility). Notwithstanding this procedure, which is necessary for technical reasons, fuel manufacturers shall aim for a zero value where the stipulated maximum value is 2R and for the mean value for quotations of maximum and minimum limits. Where it is necessary to clarify whether fuel meets the requirements of the specifications, the ISO 4259 terms shall be applied.\nIn cases of dispute, the procedures for resolving the dispute and interpretation of the results based on test method precision, described in EN ISO 4259 shall be used.\nIn cases of national dispute concerning sulphur content, either EN ISO 20846 or EN ISO 20884 shall be called up similar to the reference in the national annex of EN 228.\nThe actual sulphur content of the fuel used for the Type 6 test shall be reported.\nThe unleaded petrol content may be determined as 100 minus the sum of the percentage content of water and alcohols.\nThere shall be no intentional addition of compounds containing phosphorus, iron, manganese, or lead to this reference fuel.\nEthanol to meet specification of EN 15376 is the only oxygenate that shall be intentionally added to this reference fuel.’\n‘Parameter\nUnit\nLimits\nTest method\nMinimum\nMaximum\nResearch octane number, RON\n95\n—\nEN ISO 5164\nMotor octane number, MON\n85\n—\nEN ISO 5163\nDensity at 15 °C\nkg/m3\nreport\nEN ISO 12185\nVapour pressure\nkPa\n50\n60\nEN ISO 13016-1 (DVPE)\nSulphur content\nmg/kg\n—\n10\nEN ISO 20846\nEN ISO 20884\nOxidation stability\nminutes\n360\n—\nEN ISO 7536\nExistent gum content (solvent washed)\nmg/100ml\n—\n4\nEN ISO 6246\nAppearance shall be determined at ambient temperature or 15 °C whichever is higher\nClear and bright, visibly free of suspended or precipitated contaminants\nVisual inspection\nEthanol and higher alcohols\n% (V/V)\n70\n80\nEN 1601\nEN 13132\nEN 14517\nHigher alcohols (C3 – C8)\n% (V/V)\n—\n2\nMethanol\n—\n0,5\nPetrol\n% (V/V)\nBalance\nEN 228\nPhosphorus\nmg/l\n0,3\nEN 15487\nASTM D 3231\nWater content\n% (V/V)\n—\n0,3\nASTM E 1064\nEN 15489\nInorganic chloride content\nmg/l\n—\n1\nISO 6227 — EN 15492\npHe\n6,5\n9\nASTM D 6423\nEN 15490\nCopper strip corrosion (3h at 50 °C)\nRating\nClass 1\nEN ISO 2160\nAcidity (as acetic acid CH3COOH)\n% (m/m)\n0,005\nASTM D1613\nEN 15491\nmg/l\n40\nCarbon/hydrogen ration\nreport\nCarbon/oxygen ration\nreport", "extent": "E+W+S+N.I.", "status": null, "version": "current", "annotations": [ { "type": "footnote", "label": "f1", "text": "The values referred to in the specifications are “true values”. When establishing the value limits, the terms of ISO 4259 Petroleum products — Determination and application of precision data in relation to methods of test were applied. When fixing a minimum value, a minimum difference of 2R above zero was taken into account. When fixing a maximum and minimum value, the minimum difference used was 4R (R = reproducibility). Notwithstanding this procedure, which is necessary for technical reasons, fuel manufacturers shall aim for a zero value where the stipulated maximum value is 2R and for the mean value for quotations of maximum and minimum limits. Where it is necessary to clarify whether fuel meets the requirements of the specifications, the ISO 4259 terms shall be applied." }, { "type": "footnote", "label": "f2", "text": "In cases of dispute, the procedures for resolving the dispute and interpretation of the results based on test method precision, described in EN ISO 4259 shall be used." }, { "type": "footnote", "label": "f3", "text": "In cases of national dispute concerning sulphur content, either EN ISO 20846 or EN ISO 20884 shall be called up similar to the reference in the national annex of EN 228." }, { "type": "footnote", "label": "f4", "text": "The actual sulphur content of the fuel used for the Type 6 test shall be reported." }, { "type": "footnote", "label": "f5", "text": "Ethanol to meet specification of EN 15376 is the only oxygenate that shall be intentionally added to this reference fuel.’" }, { "type": "footnote", "label": "f6", "text": "The unleaded petrol content may be determined as 100 minus the sum of the percentage content of water and alcohols." }, { "type": "footnote", "label": "f7", "text": "There shall be no intentional addition of compounds containing phosphorus, iron, manganese, or lead to this reference fuel." } ], "outstanding_effects": [], "provenance": { "source": "legislation.gov.uk", "source_url": "https://www.legislation.gov.uk/eur/2011/566/annex/I/division/5", "retrieved_at": "2026-11-01T14:50:04.799457+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." }