State system for ensuring the uniformity of measurements. State special standard and all-union verification schedule for means of measurement of constant angular acceleration within the range of 1 up to 100 rad/s2
United power system and isolated power systems. Relay protection and automation. Differential phase protection of power lines 110–220 kV. Functional requirements
State system for ensuring the uniformity of measurements. State verification scheme for instruments measuring ethanol content in gaseous and liquid media