Home / Standards / GB/T 30501-2014 GB/T 30501-2014 Abolished Geological evaluating methods for tight sandstone gas 致密砂岩气地质评价方法 Standard Type GBT ICS N/A CCS E11 Status 废止 Issue Date 2013-12-13 Implementation 2014-06-01 Responsible Dept 国家标准委 Drafting Unit N/A