State system for ensuring the uniformity of measurements. Secondary standards of the units of length, velocity and acceleration by vibration of a solid body. Technique of comparisons
State system for ensuring the uniformity of measurements. State special standard and all-union verification schedule for means measuring radiant flux 1x10 in minus 6 degree to 1x10 in minus 2 degree W in the wavelength range of 0,4 - 1,4 um
