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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| JJG 1105-2015 |
Verification Regulation of Ammonia Gas Detectors 氨气检测仪检定规程 |
China Metrological
Standards Verification Regulation Ammonia |
 English PDF |
| JJG 631-2013 |
Verification Regulation of Ammonia-Nitrogen Automatic Analyzers 氨氮自动监测仪检定规程 |
China Metrological
Standards Verification Regulation Ammonia |
English PDF |
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