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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 19559-2021 |
Method of determining coalbed methane content 煤层气含量测定方法 |
China National Standards Method determining coalbed |
 English PDF |
| GB/T 23250-2009 |
The direct method of determining coalbed gas content in the mine 煤层瓦斯含量井下直接测定方法 |
China National Standards Method determining coalbed |
English PDF |
| GB/T 19559-2008 |
Method of determining coalbed gas content 煤层气含量测定方法 |
China National Standards Method determining coalbed |
English PDF |
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