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See Chinese contents: GB 18285-2005 GB 18285-2005: Limits and measurement methods for exhaust pollutants from vehicles equipped ignition engine under two-speed idle conditions and simple driving mode conditions
This standard specifies the emission limits and measurement methods of exhaust pollutants, under the idling and high idling conditions of vehicles equipped ignition engine. This standard also specifies three simple working condition measurement methods: Steady state working condition method, transient working condition method, simple transient working condition method, for light-duty vehicles equipped with ignition engines.
