Council Directive of 20 March 1970 on the approximation of the laws of the Member States on measures to be taken against air pollution by emissions from motor vehicles (70/220/EEC) (repealed)
[4.2. Preconditioning U.K.
4.2.1. The fuel tank(s) must be filled with the specified test fuel. If the existing fuel in the fuel tank(s) does not meet the specifications contained in 3.4.1, the existing fuel must be drained prior to the fuel fill. The test fuel must be at a temperature less than or equal to 289 °K (+ 16 °C). For the above operations the evaporative emission control system must neither be abnormally purged nor abnormally loaded. U.K.
4.2.2. The vehicle is moved to the test cell and placed on the chassis dynamometer. U.K.
4.2.3. The preconditioning consists of the driving cycle according to Annex III — Appendix 1 Figure III.1.1, parts one and two. At the request of the manufacturer, vehicles with a positive-ignition engine may be preconditioned with one Part I and two Part II driving cycles. U.K.
4.2.4. During the preconditioning the test cell temperature must remain relatively constant and not be higher than 303 °K (30 °C). U.K.
4.2.5. The drive-wheel tyre pressure must be set in accordance with the provisions of section 5.3.2 of Annex III. U.K.
4.2.6. Within ten minutes of completion of the preconditioning, the engine must be switched off. U.K.
4.2.7. If requested by the manufacturer and approved by the technical service, additional preconditioning may in exceptional cases be allowed. The technical service may also choose to conduct additional preconditioning. The additional preconditioning consists of one or more driving schedules of the part one cycle as described in Annex III — Appendix 1. The extent of such additional preconditioning must be recorded in the test report.] U.K.
