Home / Standards / GB/T 28540-2012 GB/T 28540-2012 Active Estimating method of radon-222 emanation rate from uranium tailings 铀尾矿(渣)氡-222析出率估算方法 Standard Type GBT ICS 13.280 CCS F73 Status 现行 Issue Date 2012-06-29 Implementation 2012-11-01 Responsible Dept 国家标准委 Drafting Unit N/A