State system for ensuring the uniformity of measurements. Standards of the units for physical values. The ways of development, approval, registration, maintenance and use
State system for ensuring the uniformity of measurements. Measuring instruments of direct current in the range from 1•10-15 to 1•10-9A. Verification procedure
State system for ensuring the uniformity of measurements. State special standard and all-union verification schedule for instruments measuring surface roughness parameters Rmax and Rz in range 0,025 - 1600 mkm
