Acoustics. Determination of sound power levels of noise sources. Engineering methods for small, movable sources in reverberant fields. Methods for special reverberation test rooms— 36 стр.
Acoustics. Determination of sound power levels of noise sources using sound pressure. Engineering method in an essentially free field over a reflecting plane— 42 стр.
Acoustics. Noise emitted by machinery and equipment. Measurement of emission sound pressure levels at a work station and at other specified positions. Engineering method in an essentially free field over a reflecting plane— 24 стр.
Acoustics. Noise emitted by machinery and equipment. Measurement of emission sound pressure levels at a work station and at other specified positions. Method requiring environmental corrections— 26 стр.
Acoustics. Determination of sound power levels of noise sources. Engineering methods for small, movable sources in reverberant fields. Comparison for hard-walled test rooms— 20 стр.
Safety of machinery. Safety requirements for hydraulically powered open die hot forging presses for the forging of steel and non-ferrous metals— 46 стр.
