Document ID: chunk:federal_register_of_legislation:F2024L00443:reg:3:p8
Version: federal_register_of_legislation:F2024L00443
Segment Type: reg
Provision Reference: reg 3 (pt 8/13)
Character Range: 231292–234405

its primary designed driving mode. At the request of the manufacturer a four-wheel drive vehicle shall be tested in its primary drive mode of operation.
              5.3. Performing the test
              5.3.1. The provisions of paragraph 6.4., excluding 6.4.1.2., of Annex 4a to the 07 series of amendments to this Regulation apply in respect of starting the engine, carrying out the test and taking the emission samples. The sampling begins before or at the initiation of the engine start-up procedure and ends on conclusion of the final idling period of the last elementary cycle of the Part One (urban driving cycle), after 780 seconds.
               The first driving cycle starts with a period of 11 seconds idling as soon as the engine has started.
              5.3.2. For the analysis of the sampled emissions the provisions of paragraph 6.5., excluding paragraph 6.5.2., of Annex 4a to the 07 series of amendments to this Regulation apply. In performing the exhaust sample analysis the Technical service shall exercise care to prevent condensation of water vapour in the exhaust gas sampling bags.
              5.3.3. For the calculations of the mass emissions the provisions of paragraph 6.6. of Annex 4a to the 07 series of amendments to this Regulation apply.
              5.4. Additional requirements for Hybrid Electric Vehicles
              5.4.1. For OVC vehicles, the measurements of emissions of pollutants shall be carried out under the same conditions as specified for condition B of the NEDC based Type I test (paragraphs 3.1.3. and 3.2.3. of Annex 14 to the 07 series of amendments to this Regulation) .
              5.4.2. For NOVC vehicles, the measurements of emissions of pollutants shall be carried out under the same conditions as in the NEDC based Type I test as set out in Annex 4a to the 07 series of amendments to this Regulation.
              6. Other requirements
              6.1. Irrational emission control strategy
              6.1.1. Any irrational emission control strategy which results in a reduction in effectiveness of the emission control system under normal operating conditions at low temperature driving, so far as not covered by the standardised emission tests, may be considered a defeat device.

Annex 9

Reserved

Annex 10

Specifications of reference fuels
              1. Specifications of reference fuels for testing vehicles to the emission limits
              1.1 The specification for the reference fuels to be used shall be those set out in Annex B3 of UN Regulation No. 154.
              2.  Specifications of reference fuel to be used for testing vehicles equipped with positive ignition engines at low ambient temperature – Type 6 Test

Type: Petrol (E10)
Parameter                      Unit      Limits 1                             Test method
Minimum                        Maximum
Research octane number, RON 2            95.0                                 98.0         EN ISO 5164
Motor octane number, MON 2               85.0                                 89.0         EN ISO 5163
Density at 15 °C               kg/m3     743.0