The National Dissemination of International Measurements

The paper presents the most significant actions which a primary Radionuclide Metrology Laboratory must accomplish, in order to disseminate the international equivalence to the entire national traceability chain: absolute standardization methods and demonstration of international equivalence, construction and calibration of a consistent set of secondary standardization equipment, preparation of radioactive standards. Delivery of radioactive standards to the end users and carrying out metrological services. Organization of national proficiency tests with the users. International validation of secondary standards by proficiency tests and establishment of a Quality System Assurance.