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
Agriculture and forestry interchangeable towed and semi-mounted equipment, tractor-drawn trailers and semi-trailers. Mechanical coupling devices. General technical requirements
