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[F1ANNEX IIIA U.K. VERIFYING REAL DRIVING EMISSIONS

Appendix 1

Test procedure for vehicle emissions testing with a Portable Emissions Measurement System (PEMS) U.K.

3. GENERAL REQUIREMENTS U.K.
3.1. PEMS U.K.

The test shall be carried out with a PEMS, composed of components specified in points 3.1.1 to 3.1.5. If applicable, a connection with the vehicle ECU may be established to determine relevant engine and vehicle parameters as specified in point 3.2.

3.1.1. Analysers to determine the concentration of pollutants in the exhaust gas. U.K.
3.1.2. One or multiple instruments or sensors to measure or determine the exhaust mass flow. U.K.
3.1.3. A Global Positioning System to determine the position, altitude and, speed of the vehicle. U.K.
3.1.4. If applicable, sensors and other appliances being not part of the vehicle, e.g. to measure ambient temperature, relative humidity, air pressure, and vehicle speed. U.K.
3.1.5. An energy source independent of the vehicle to power the PEMS.] U.K.