The paper presents the main achievements of the Department of Radionuclide Metrology at the Isotope Centre. concerning the establishment of measurement standards of the activity (Bq) of gamma and beta emitting radionuclides. as well as the dissemination of the unit to end users. It highlights the participation of the department in the last five years in key and supplementary compariso... https://parisnaturalfoodes.shop/product-category/gastro-relief/