Home / Standards / GB 12950-1991 GB 12950-1991 Active Safety regulations for seismic exploration blasting practices 地震勘探爆炸安全规程 Standard Type GB ICS N/A CCS D10 Status 现行 Issue Date 1991-06-05 Implementation 1992-03-01 Responsible Dept 自然资源部(国土) Drafting Unit N/A