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EVS-EN-ISO 8769:2022 Radioaktiivsuse mõõtmine : alfa-, beeta- ja footonkiirgusega radionukliidid. Pindsaastemonitoride kalibreerimise tugietalonide kirjeldused = Measurement of radioactivity : alpha-, beta- and photon emitting radionuclides. Reference ...
Eesti Standardimis- ja Akrediteerimiskeskus, Radexpert (osaühing)