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Standard
| JJF 1221-2009 Calibration Specification for Chassis Dynamometers for Automobile Emissions Testing (English Version) |
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Detail of JJF 1221-2009
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Introduction of JJF 1221-2009
本规范规定了汽车排气污染物检测用底盘测功机的计量特性、校准条件、校准项目和校准方法。
本规范适用于点燃式发动机汽车稳态工况法、简易瞬态工况法及压燃式发动机汽车加载减速工况法排气污染物检测用底盘测功机的校准。
Contents of JJF 1221-2009