State system for ensuring the uniformity of measurements. The state primary standard and the all-union verification schedule for means measuring the flux of electrons and that of energy of the beam of accelerated electrons energy from 0,8 to 8,0 pJ (5 to 50 MeV)
Occupational safety standards system. Means for individual protection of breathing organs. Methods of testing all-service canisters protection time against noxious gaseous contaminants