State system for ensuring the uniformity of measurements. State verification schedule for means of measuring spectral density of radiance, spectral density of radiant intensity, spectral density of irradiance, radiant intensity and irradiance in the wavelength range of 0,2...25,0 µm
Shielding materials for radiochemical works and nuclear power plants. Method for determination of isolating properties in respect to beta-radionuclide contamination
