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.
Building materials and products -- Hygrothermal properties -- Tabulated design values and procedures for determining declared and design thermal values— 32 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.