DIN 25457-7:2017-08 Activity measurement methods for the clearance of radioactive substances and nuclear facility components - Part 7: Ground surfaces and excavated soil
2017DIN 25457-7:2017-08 Activity measurement methods for the clearance of radioactive substances and nuclear facility components - Part 7: Ground surfaces and excavated soil
2008DIN 25457-7:2008 Activity measurement methods for the release of radioactive waste materials and nuclear facility components - Part 7: (Nuclear) sites