KS C IEC 61562-2020 Radiation protection instrumentation-Portable equipment for measuring specific activity of beta-emitting radionuclides in foodstuffs
2020KS C IEC 61562-2020 Radiation protection instrumentation-Portable equipment for measuring specific activity of beta-emitting radionuclides in foodstuffs
2005KS C IEC 61562:2005 Radiation protection instrumentation-Portable equipment for measuring specific activity of beta-emitting radionuclides in foodstuffs