State system for ensuring the uniformity of measurements. State special standard and all-union verification schedule for means measuring temperature coefficient of linear expansion in the range 4,2-90 K
State system for ensuring the uniformity of measurements. State special standard and state verification schedule for means measuring radiation field parameters of antenna systems with operating dimensions of apertures from 1,5 to 3,0 m at the frequency range from 2,5 to 40,0 GHz
