BS ISO 20816-2:2017
Действует
Mechanical vibration. Measurement and evaluation of machine vibration. Land-based gas turbines, steam turbines and generators in excess of 40 MW, with fluid-film bearings and rated speeds of 1 500 r/min, 1 800 r/min, 3 000 r/min and 3 600 r/min
— 30 стр.