Acoustics. Statistical distribution of hearing thresholds of otologically normal persons in the age range from 18 years to 25 years under free-field listening conditions— 22 стр.
Acoustics -- Reference zero for the calibration of audiometric equipment -- Part 7: Reference threshold of hearing under free-field and diffusefield listening conditions— 16 стр.
Intelligent transport systems (ITS). Cooperative intersection signal information and violation warning systems (CIWS). Performance requirements and test procedures— 22 стр.
Ageing of thermal insulation materials. Determination of the long-term change in thermal resistance of closed-cell plastics (accelerated laboratory test methods)— 24 стр.