State system for ensuring the uniformity of measurements. Optics and optical instruments. Field procedures for testing geodetic and surveying instruments. Part 4. Electro-optical distance meters (EDM instruments)
State system for ensuring the uniformity of measurements. The state special standard and all-union verification schedule for means measuring instruments of maximum-energy flux of stopping radiation at photon energy from 0,8 to 8,0 pJ (5 to 50 MeV)
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