GOST 27711-88

State system for ensuring the uniformity of measurements. Acoustics. Reference zero for the calibration of audiometric equipment. Part 3. Reference equivalent threshold sound pressure levels of bone vibrators for pure tones

Space systems. Materials test methods. Method of determining linear thermal expansion coefficient of composites at high temperatures

Hydraulic turbines, storage pumps and pump-turbines. Tendering Documents. Part 4. Guidelines for technical specifications for Kaplan and propeller turbines

Electric machines. Rated speeds of rotation and tolerances

Cross beams of rigid portals for overhead contact line of railway transport. General specifications

Railway telecommunications. General safety requirements