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| Chinese National Standard Category: Fire monitoring, alarming and fire-fighting dispatching system |
| English Title: | Combustible gas detectors—Part 4: Line-type optical beam combustible gas detectors for industrial and commercial use |
| Chinese Title: | 可燃气体探测器 第4部分：工业及商业用途线型光束可燃气体探测器 |
| Standard No.: | GB 15322.4-2019 |
| Category No.: | C81 |
| Issued by: | SAMR; SAC |
| Issued on: | 2019-10-14 |
| Implemented on: | 2020-11-1 |
| Status: | valid |
| Superseded by: | |
| Superseded on: | |
| Abolished on: | |
| Superseding: | |
| Word Count: | 10500 words |
| Similar Standards: |
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