Filter :
| Standard and/or project under the direct responsibility of ISO/TC 263 Secretariat | Stage | ICS |
|---|---|---|
|
Assessment specification of coalbed methane resources |
60.60 | |
|
Method of determining coalbed methane content |
90.93 | |
|
Coalbed methane exploration and development — Terms and definitions |
90.93 | |
|
Method of determining specific surface area of coal |
60.60 |
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