State system for ensuring the unification of measurements. State special standard and state verification schedule for means measuring radiation field parameters of antenna systems with aperture dimensions from 5 to 100 m and of the airborne antennas within the frequency range from 0,3 to 3,0 GHz
Functional safety. Safety instrumented systems for the process industry sector. Part 3. Guidelines for the determination of the required safety integrity levels
State system for ensuring the uniformity of measurements. State verification schedule for means of measuring radiant flux and irradiance in the wavelength range of 0,03-0,4 um
