GB 18285-2005 Translated English of Chinese Standard. (GB18285-2005): Limits and measurement methods for exhaust pollutants from vehicles equipped ignition engine under two-speed idle conditions and simple driving mode conditionshttps://www.chinesestandard.net, 2022 M03 6 - 81 páginas 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. |
Contenido
| 5 | |
| 6 | |
| 7 | |
Emission limits of exhaust pollutant | 9 |
Measurement method | 10 |
Singlefuel vehicles and dualfuel vehicles | 12 |
Appendix A Normative Technical specifications for testing instrument for exhaust gas in dualidle method | 13 |
Appendix B Normative Steady state measurement method | 22 |
Normative Measurement method by transient condition method | 44 |
Normative Measurement method by simple transient condition method | 61 |
Términos y frases comunes
absorbed power according adjustment ambient temperature analytical instrument calculation calibration gas catalytic converter Category chassis dynamometer checking condition clutch compressed natural gas condition method constant speed Deceleration Drive tire drum diameter dynamometer's emission limits Engine displacement ensure Environmental Protection Administration equipped with ignition exceed exhaust gas exhaust gas analyzer exhaust pipe exhaust pollutants flow rate friction loss power fuel gas flow analyzer high idle speed ignition engines in-use vehicles inertia simulation km/h light-duty vehicles Limits and measurement liquefied petroleum gas load maximum total mass measurement methods measuring instrument meet the requirements methods for exhaust nitrogen oxides O2 concentration power absorption device range reference inertia Reference mass Relative humidity sample gas sampling probe sampling system set power value simple transient condition specified standard gas test condition Test vehicle testing results torque transmission Vehicle identification vehicle speed vehicles equipped vehicles newly produced volume fraction zero