State system for ensuring the uniformity of measurements. Standard reference data. Vanadium. Lattice parameters. Coeffi cient of linear thermal expansion in the range of temperatures from 240 K to 400 K
State system for ensuring the uniformity of measurements. State verification scheme for instruments measuring of the spectral radiance, spectral radiant power, spectral irradiance, spectral radiant intensity, power and radiant intensity in spectral range from 0,001 to 1,600 um