Industrial automation systems and integration. Product data representation and exchange. Part 519. Application interpreted constructions. Geometric tolerances
State system for ensuring the uniformity of measurements. Radioisotope and piezobalance analyzers for mass concentration of aerosol particles in air of the working zone. The method of verification
State system for ensuring the uniformity of measurement. State special standard and all-union verification schedule for means measuring radiation field parameters of antenna systems with operating dimensions of apertures from 0,1 to 0,4 m at the frequency range from 2,5 to 12 GHz
