Home / Standards / GB 22448-2008 GB 22448-2008 Active Protection rules for industrial X-ray radiographic equipment up to 500kV 500kV以下工业X射线探伤机防护规则 Standard Type GB ICS 13.280;19.100 CCS N78 Status 现行 Issue Date 2008-10-07 Implementation 2009-09-01 Responsible Dept 工业和信息化部 Drafting Unit N/A