18th meeting of TC 1.7 "Photometry and Radiometry" (сombined format: VNIIOFI (Moscow, Russia) and online): 12-14 October 2021
15th online meeting of TC 1.1 "General Metrology"
and webinar of implementation of the CIPM MRA documents: 15 October 2021
389/RU/07 Comparison of the re-entrant ionization chamber (IC) calibrations factors for the medical radionuclides ("Dosecalibrators") (Pilot –VNIIFTRI, Russia)
641/BY/14 Comparison of the national standards of air kerma for x-radiation qualities used in radiation protection and diagnostic radiology (S.Soroka, BelGIM)