KS C IEC 61311-2005(2015) Radiation protection instrumentation-Equipment for continuously monitoring beta and gamma emitting radionuclides in liquid effluents or in surface waters
2016KS C IEC 61311:2016 Radiation protection instrumentation-Equipment for continuously monitoring beta and gamma emitting radionuclides in liquid effluents or in surface waters
0000 KS C IEC 61311-2005(2015)
2005KS C IEC 61311:2005 Radiation protection instrumentation-Equipment for continuously monitoring beta and gamma emitting radionuclides in liquid effluents or in surface waters