Home / Standards / GB/T 12128-2026 GB/T 12128-2026 Upcoming Reference sources for calibration of surface contamination monitors—Alpha-, beta- and photon emitters 用于校准表面污染监测仪的参考源α、β和光子发射体 Standard Type GBT ICS 27.120.99 CCS F 51 Status 即将实施 Issue Date 2026-03-31 Implementation 2026-10-01 Responsible Dept 国家标准委 Drafting Unit N/A