ANNEX IXSupplementary provisions
ANNEX IX SPECIFICATIONS OF REFERENCE FUELS Technical data on fuels for testing compression-ignition engines Type: Diesel (B7) Parameter Unit Limits ( 1 ) Test method Minimum Maximum Cetane index 46,0 — EN ISO 4264 Cetane number ( 2 ) 52,0 56,0 EN-ISO 5165 Density at 15 °C kg/m 3 833 837 EN-ISO 3675 EN ISO 12185 Distillation: — 50 % point °C 245 — EN-ISO 3405 — 95 % point °C 345 350 EN-ISO 3405 — final boiling point °C — 360 EN-ISO 3405 Flash point °C 55 — EN 22719 CFPP °C — –5 EN 116 Viscosity at 40 °C mm 2 /s 2,3 3,3 EN-ISO 3104 Polycyclic aromatic hydrocarbons % m/m 2,0 4,0 EN 12916 Sulphur content mg/kg — 10 EN-ISO 20846/EN-ISO 20884 Copper corrosion (3h at 50 °C) Rating — Class 1 EN-ISO 2160 Conradson carbon residue (10 % DR) % m/m — 0,2 EN-ISO 10370 Ash content % m/m — 0,01 EN-ISO 6245 Total contamination mg/kg — 24 EN 12662 Water content % m/m — 0,02 EN-ISO 12937 Neutralisation (strong acid) number mg KOH/g — 0,10 ASTM D 974 Oxidation stability ( 3 ) mg/ml — 0,025 EN-ISO 12205 Lubricity (HFRR wear scan diameter at 60 °C) μm — 400 EN ISO 12156 Oxidation stability at 110 °C ( 3 ) H 20,0 EN 15751 FAME ( 4 ) % v/v 6,0 7,0 EN 14078 Type: Ethanol for dedicated compression-ignition engines (ED95) ( 5 ) Parameter Unit Limits ( 6 ) Test method ( 7 ) Minimum Maximum Total alcohol (Ethanol incl. content on higher saturated alcohols) % m/m 92,4 EN 15721 Other higher saturated mono-alcohols (C 3 -C 5 ) % m/m 2,0 EN 15721 Methanol % m/m 0,3 EN 15721 Density at 15 °C kg/m 3 793,0 815,0 EN-ISO 12185 Acidity, calculated as acetic acid % m/m 0,0025 EN 15491 Appearance Bright and clear Flashpoint °C 10 EN 3679 Dry residue mg/kg 15 EN 15691 Water content % m/m 6,5 EN 15489 ( 8 ) EN-ISO 12937 EN 15692 Aldehydes calculated as acetaldehyde % m/m 0,0050 ISO 1388-4 Esters calculated as ethylacetat % m/m 0,1 ASTM D1617 Sulphur content mg/kg 10,0 EN 15485 EN 15486 Sulphates mg/kg 4,0 EN 15492 Particulate contamination mg/kg 24 EN 12662 Phosphorus mg/l 0,20 EN 15487 Inorganic chloride mg/kg 1,0 EN 15484 or EN 15492 Copper mg/kg 0,100 EN 15488 Electrical Conductivity μS/cm 2,50 DIN 51627-4 or prEN 15938 Technical data on fuels for testing positive-ignition engines Type: Petrol (E10) Parameter Unit Limits ( 9 ) Test method ( 10 ) Minimum Maximum Research octane number, RON 95,0 97,0 EN-ISO 5164:2005 ( 11 ) Motor octane number, MON 84,0 86,0 EN-ISO 5163:2005 ( 11 ) Density at 15 °C kg/m 3 743 756 EN-ISO 3675 EN-ISO 12185 Vapour pressure kPa 56,0 60,0 EN-ISO 13016-1 (DVPE) Water content % v/v 0,015 ASTM E 1064 Distillation: — evaporated at 70 °C % v/v 24,0 44,0 EN-ISO 3405 — evaporated at 100 °C % v/v 56,0 60,0 EN-ISO 3405 — evaporated at 150 °C % v/v 88,0 90,0 EN-ISO 3405 — final boiling point °C 190 210 EN-ISO 3405 Residue % v/v — 2,0 EN-ISO 3405 Hydrocarbon analysis: — olefins % v/v 3,0 18,0 EN 14517 EN 15553 — aromatics % v/v 25,0 35,0 EN 14517 EN 15553 — benzene % v/v 0,4 1,0 EN 12177 EN 238, EN 14517 — saturates % v/v Report EN 14517 EN 15553 Carbon/hydrogen ratio Report Carbon/oxygen ratio Report Induction period ( 12 ) minutes 480 — EN-ISO 7536 Oxygen content ( 13 ) % m/m 3,7 EN 1601 EN 13132 EN 14517 Existent gum mg/ml — 0,04 EN-ISO 6246 Sulphur content ( 14 ) mg/kg — 10 EN-ISO 20846 EN ISO 20884 Copper corrosion (3 h at 50 °C) rating — Class 1 EN-ISO 2160 Lead content mg/l — 5 EN 237 Phosphorus content ( 15 ) mg/l — 1,3 ASTM D 3231 Ethanol ( 12 ) % v/v 9,5 10,0 EN 1601 EN 13132 EN 14517 Type: Ethanol (E85) Parameter Unit Limits ( 16 ) Test method Minimum Maximum Research octane number, RON 95,0 — EN-ISO 5164 Motor octane number, MON 85,0 — EN-ISO 5163 Density at 15 °C kg/m 3 Report ISO 3675 Vapour pressure kPa 40,0 60,0 EN-ISO 13016-1 (DVPE) Sulphur content ( 17 ) mg/kg — 10 EN 15485 or EN 15486 Oxidation stability Minutes 360 EN-ISO 7536 Existent gum content (solvent washed) mg/100 ml — 5 EN-ISO 6246 Appearance This shall be determined at ambient temperature or 15 °C whichever is higher. Clear and bright, visibly free of suspended or precipitated contaminants Visual inspection Ethanol and higher alcohols ( 18 ) % v/v 83 85 EN 1601 EN 13132 EN 14517 E DIN 51627-3 Higher alcohols (C 3 -C 8 ) % v/v — 2,0 E DIN 51627-3 Methanol % v/v 1,00 E DIN 51627-3 Petrol ( 19 ) % v/v Balance EN 228 Phosphorus mg/l 0,20 ( 20 ) EN 15487 Water content % v/v 0,300 EN 15489 or EN 15692 Inorganic chloride content mg/l 1 EN 15492 pHe 6,5 9,0 EN 15490 Copper strip corrosion (3 h at 50 °C) Rating Class 1 EN ISO 2160 Acidity, (as acetic acid CH 3 COOH) % m/m (mg/l) — 0,0050 (40) EN 15491 Electric Conductivity μS/cm 1,5 DIN 51627-4 or prEN 15938 Carbon/hydrogen ratio report Carbon/oxygen ratio report Type: LPG Parameter Unit Fuel A Fuel B Test method Composition: EN 27941 C 3 -content % v/v 30 ± 2 85 ± 2 C 4 -content % v/v Balance ( 21 ) Balance ( 21 ) < C 3 , > C 4 % v/v Maximum 2 Maximum 2 Olefins % v/v Maximum 12 Maximum 15 Evaporation residue mg/kg Maximum 50 Maximum 50 EN 15470 Water at 0 °C Free Free EN 15469 Total sulphur content including odorant mg/kg Maximum 10 Maximum 10 EN 24260, ASTM D 3246 ASTM 6667 Hydrogen sulphide None None EN-ISO 8819 Copper strip corrosion (1 h at 40 °C) Rating Class 1 Class 1 ISO 6251 ( 22 ) Odour Characteristic Characteristic Motor octane number ( 23 ) Minimum 89,0 Minimum 89,0 EN 589 Annex B Type: NG/Biomethane Characteristics Units Basis Limits Test method minimum maximum Reference fuel G R Composition Methane 87 84 89 Ethane 13 11 15 Balance ( 24 ) % mole — — 1 ISO 6974 Sulphur content mg/m 3 ( 25 ) — 10 ISO 6326-5 Reference fuel G 23 Composition Methane 92,5 91,5 93,5 Balance ( 26 ) % mole — — 1 ISO 6974 N 2 % mole 7,5 6,5 8,5 Sulphur content mg/m 3 ( 27 ) — — 10 ISO 6326-5 Reference fuel G 25 Composition Methane % mole 86 84 88 Balance ( 28 ) % mole — — 1 ISO 6974 N 2 % mole 14 12 16 Sulphur content mg/m 3 ( 29 ) — — 10 ISO 6326-5 ( 1 ) The values quoted in the specifications are ‘true values’. In establishment of their limit values the terms of ISO 4259 Petroleum products — Determination and application of precision data in relation to methods of test have been applied and in fixing a minimum value, a minimum difference of 2R above zero has been taken into account; in fixing a maximum and minimum value, the minimum difference is 4R (R = reproducibility). Notwithstanding this measure, which is necessary for technical reasons, the manufacturer of fuels shall nevertheless aim at a zero value where the stipulated maximum value is 2R and at the mean value in the case of quotations of maximum and minimum limits. Should it be necessary to clarify whether a fuel meets the requirements of the specifications, the terms of ISO 4259 shall be applied. ( 2 ) The range for cetane number is not in accordance with the requirements of a minimum range of 4R. However, in the case of a dispute between fuel supplier and fuel user, the terms of ISO 4259 may be used to resolve such disputes provided replicate measurements, of sufficient number to archive the necessary precision, are made in preference to single determinations. ( 3 ) Even though oxidation stability is controlled, it is likely that shelf life will be limited. Advice shall be sought from the supplier as to storage conditions and life. ( 4 ) FAME content to meet the specification of EN 14214. ( 5 ) Additives, such as cetane improver as specified by the engine manufacturer, may be added to the ethanol fuel, as long as no negative side effects are known. If these conditions are satisfied, the maximum allowed amount is 10 % m/m. ( 6 ) The values quoted in the specifications are ‘true values’. In establishment of their limit values the terms of ISO 4259 Petroleum products — Determination and application of precision data in relation to methods of test have been applied and in fixing a minimum value, a minimum difference of 2R above zero has been taken into account; in fixing a maximum and minimum value, the minimum difference is 4R (R = reproducibility). Notwithstanding this measure, which is necessary for technical reasons, the manufacturer of fuels shall nevertheless aim at a zero value where the stipulated maximum value is 2R and at the mean value in the case of quotations of maximum and minimum limits. Should it be necessary to clarify whether a fuel meets the requirements of the specifications, the terms of ISO 4259 shall be applied. ( 7 ) Equivalent EN/ISO methods will be adopted when issued for properties listed above. ( 8 ) Should it be necessary to clarify whether a fuel meets the requirements of the specifications, the terms of EN 15489 shall be applied. ( 9 ) The values quoted in the specifications are ‘true values’. In establishment of their limit values the terms of ISO 4259 Petroleum products — Determination and application of precision data in relation to methods of test have been applied and in fixing a minimum value, a minimum difference of 2R above zero has been taken into account; in fixing a maximum and minimum value, the minimum difference is 4R (R = reproducibility). Notwithstanding this measure, which is necessary for technical reasons, the manufacturer of fuels shall nevertheless aim at a zero value where the stipulated maximum value is 2R and at the mean value in the case of quotations of maximum and minimum limits. Should it be necessary to clarify whether a fuel meets the requirements of the specifications, the terms of ISO 4259 shall be applied. ( 10 ) Equivalent EN/ISO methods will be adopted when issued for properties listed above. ( 11 ) A correction factor of 0,2 for MON and RON shall be subtracted for the calculation of the final result in accordance with EN 228:2008. ( 12 ) The fuel may contain oxidation inhibitors and metal deactivators normally used to stabilise refinery gasoline streams, but detergent/dispersive additives and solvent oils shall not be added. ( 13 ) Ethanol meeting the specification of EN 15376 is the only oxygenate that shall be intentionally added to the reference fuel. ( 14 ) The actual sulphur content of the fuel used for the Type 1 test shall be reported. ( 15 ) There shall be no intentional addition of compounds containing phosphorus, iron, manganese, or lead to this reference fuel. ( 16 ) The values quoted in the specifications are ‘true values’. In establishment of their limit values the terms of ISO 4259 Petroleum products — Determination and application of precision data in relation to methods of test have been applied and in fixing a minimum value, a minimum difference of 2R above zero has been taken into account; in fixing a maximum and minimum value, the minimum difference is 4R (R = reproducibility). Notwithstanding this measure, which is necessary for technical reasons, the manufacturer of fuels shall nevertheless aim at a zero value where the stipulated maximum value is 2R and at the mean value in the case of quotations of maximum and minimum limits. Should it be necessary to clarify whether a fuel meets the requirements of the specifications, the terms of ISO 4259 shall be applied. ( 17 ) The actual sulphur content of the fuel used for the emission tests shall be reported. ( 18 ) Ethanol to meet specification of EN 15376 is the only oxygenate that shall be intentionally added to this reference fuel. ( 19 ) The unleaded petrol content can be determined as 100 minus the sum of the percentage content of water, alcohols, MTBE and ETBE. ( 20 ) There shall be no intentional addition of compounds containing phosphorus, iron, manganese, or lead to this reference fuel. ( 21 ) Balance shall be read as follows: balance = 100 - C 3 - < C 3 - > C 4 . ( 22 ) This method may not accurately determine the presence of corrosive materials if the sample contains corrosion inhibitors or other chemicals which diminish the corrosivity of the sample to the copper strip. Therefore, the addition of such compounds for the sole purpose of biasing the test method is prohibited. ( 23 ) At the request of the engine manufacturer, a higher MON could be used to perform the type-approval tests. ( 24 ) Inerts + C 2+ ( 25 ) Value to be determined at standard conditions 293,2 K (20 °C) and 101,3 kPa. ( 26 ) Inerts (different from N 2 ) + C 2 + C 2+ ( 27 ) Value to be determined at 293,2 K (20 °C) and 101,3 kPa. ( 28 ) Inerts (different from N 2 ) + C 2 + C 2+ ( 29 ) Value to be determined at 293,2 K (20 °C) and 101,3 kPa.