GB 50370-2005 第3.3.1条
| **** | **IG541 design concentration**: The design concentration of an IG541 fire suppression system shall not be less than 1.3 times the extinguishing concentration and shall not be lower than 37.5%. |
| **** | **IG541 design concentration**: The design concentration of an IG541 fire suppression system shall not be less than 1.3 times the extinguishing concentration and shall not be lower than 37.5%. |
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