Home / Standards / GB 7667-2003 GB 7667-2003 Abolished The dose of X-rays leakage from electron microscope 电子显微镜X射线泄漏剂量 Standard Type GB ICS 37.020 CCS N33 Status 废止 Issue Date 2003-11-20 Implementation 2004-05-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A