Document ID: chunk:federal_register_of_legislation:F2012C00283:reg:7:p1
Version: federal_register_of_legislation:F2012C00283
Segment Type: reg
Provision Reference: reg 7 (pt 1/51)
Character Range: 469362–473046

7    Moderate deceleration to stop      -2.23

The standard road cycle is represented graphically in the following figure:

Annex 10
  Specifications of reference fuels
              1. Specifications of reference fuels for testing vehicles to the emission limits
              1.1. Technical data on the reference fuel to be used for testing vehicles equipped with positive-ignition engines
Type: Petrol (E5)
Parameter                    Unit     Limits1  Test method
Minimum                      Maximum
Research octane number, RON           95.0     -            EN 25164
                                                            prEN ISO 5164
Motor octane number, MON              85.0     -            EN 25163
                                                            prEN ISO 5163
Density at 15 °C             kg/m3    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    48.0     60.0         EN-ISO 3405
– Evaporated at 150 °C       % v/v    82.0     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      13.0         ASTM D 1319
– Aromatics                  % v/v    29.0     35.0         ASTM D 1319
– Benzene                    % v/v    -        1.0          EN 12177
– Saturates                  % v/v    Report   ASTM 1319
Carbon/hydrogen ratio                 Report
Carbon/oxygen ratio                   Report
Induction period2            minutes  480      -            EN-ISO 7536
Oxygen content4              % m/m    Report   EN 1601
Existent gum                 mg/ml    -        0.04         EN-ISO 6246
Sulphur content3             mg/kg    -        10           EN ISO 20846
                                                            EN ISO 20884
Copper corrosion                      -        Class 1      EN-ISO 2160
Lead content                 mg/l     -        5            EN 237
Phosphorus content           mg/l     -        1.3          ASTM D 3231
Ethanol5                     % v/v    4.7      5.3          EN 1601
                                                            EN 13132

    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 fuel may contain oxidation inhibitors and metal deactivators normally used to stabilize refinery gasoline streams,  but detergent/dispersive additives and solvent oils shall not be added.
    3 The actual sulphur content of the fuel used for the Type I Test shall be reported.
    4