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.
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Sources: Agreement Concerning the Adoption of Harmonized Technical United Nations Regulations for Wheeled Vehicles, Agreement Concerning the Adoption of Harmonized Technical United Nations Regulations for Wheeled Vehicles, Agreement Concerning the Adoption of Harmonized Technical United Nations Regulations for Wheeled Vehicles