State system for ensuring the uniformity of measurements. State verification schedule for instruments measuring surface flatness parameters of optical surfaces up to 200 mm
Occupational safety standards system. Industrial filtering gas masks and respirators. Nephelometric method for determination of all-service canisters penetration coefficient of oil mist
State system for ensuring the uniformity of measurements. State special standard and state verification schedule for means measuring radiation field parameters of antenna systems with operating dimensions of apertures from 1,5 to 3,0 m at the frequency range from 2,5 to 40,0 GHz
