KS C IEC 61275-2021 Radiation protection instrumentation-Measurement of discrete radionuclides in the environment-In situ photon spectrometry system using a germanium detector
2021KS C IEC 61275-2021 Radiation protection instrumentation-Measurement of discrete radionuclides in the environment-In situ photon spectrometry system using a germanium detector
2016KS C IEC 61275:2016 Radiation protection instrumentation-Measurement of discrete radionuclides in the environment-In situ photon spectrometry system using a germanium detector
2005KS C IEC 61275:2005 Radiation protection instrumentation-Measurement of discrete radionuclides in the environment-In situ photon spectrometry system using a germanium detector