The Laboratory of Radioactivity Standards of the Radioisotope Centre POLATOM is a competent metrological laboratory in Poland calibrating radioactive solutions of a-, b- and g- emitting radionuclide with use of absolute measuring methods. Calibrated radioactive materials are being made available to users in the form of radioactive standards. Absolute measuring methods worked out in the laboratory and unique systems for the measurement of radioactivity make it possible to produce many types of radioactive standards.

In 1999 the President of the Central Office of Measures established the National Standard of Radionuclide Activity in RC POLATOM. It is obligatory for the LRS to make available the National Standard to any user and to compare to it all secondary standards.