2016KS A ISO 8769:2016 Reference sources-Calibration of surface contamination monitors-Alpha-, beta- and photon emitters
2013KS A ISO 8769:2013 Reference sources-Calibration of surface contamination monitors-Alpha-, beta- and photon emitters
2002KS A ISO 8769:2002 Reference sources for the calibration of surface contamination monitors-Beta-emitters(maximum beta energy greater than 0.15 MeV) and alpha-emitters