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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| JJG 688-2007 |
Verification Regulation of Vehicle Exhaust Emissions Measuring Instruments 汽车排放气体测试仪检定规程 |
China Metrological
Standards Verification Regulation Emission |
 English PDF |
| JJG 768-2005 |
Verification Regulation of Emission Spectrometer 发射光谱仪检定规程 |
China Metrological
Standards Verification Regulation Emission |
English PDF |
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