Home / Standards / GB/T 30501-2022 GB/T 30501-2022 Active Geological evaluating methods for tight sandstone gas 致密砂岩气地质评价方法 Standard Type GBT ICS 75.010 CCS E11 Status 现行 Issue Date 2022-03-09 Implementation 2022-10-01 Responsible Dept 国家标准委 Drafting Unit N/A