State system for ensuring the uniformity of measurements. National hierarchy scheme for measuring instruments of lightning discharge pulse current strength in range from 1 to 100 kA
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