Home / Standards / GB/T 13980-2008 GB/T 13980-2008 Active Density gauges utilizing ionizing radiation 电离辐射密度计 Standard Type GBT ICS 17.040.30 CCS F86 Status 现行 Issue Date 2008-07-02 Implementation 2009-04-01 Responsible Dept 国家标准委 Drafting Unit N/A