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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 26944.4-2011 |
Tunnel environment detection equipment - Part 4: Wind speed & direction indicator 隧道环境检测设备 第4部分：风速风向检测器 |
China National Standards Tunnel environment detection |
 English PDF |
| GB/T 26944.3-2011 |
Tunnel environment detection equipment - Part 3: Visibility indicator 隧道环境检测设备 第3部分：能见度检测器 |
China National Standards Tunnel environment detection |
English PDF |
| GB/T 26944.2-2011 |
Tunnel environment detection equipment - Part 2: Carbon monoxide detector 隧道环境检测设备 第2部分：一氧化碳检测器 |
China National Standards Tunnel environment detection |
English PDF |
| GB/T 26944.1-2011 |
Tunnel environment detection equipment - Part 1: General rule 隧道环境检测设备 第1部分：通则 |
China National Standards Tunnel environment detection |
English PDF |
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