Sound system equipment. Headphones and earphones associated with portable audio equipment. Maximum sound pressure level measurement methodology and limit considerations. General method for "one package equipment"— 12 стр.
Electroacoustics. Simulators of human head and ear. Occluded-ear simulator for the measurement of earphones coupled to the ear by means of ear inserts— 22 стр.
Water quality. Biological classification of rivers. Guidance on the presentation of biological quality data from surveys of benthic macroinvertebrates— 16 стр.
Acoustics. Determination of sound power levels and sound energy levels of noise sources using sound pressure. Engineering methods for an essentially free field over a reflecting plane— 88 стр.
Acoustics. Determination of sound power levels and sound energy levels of noise sources using sound pressure. Precision methods for anechoic rooms and hemi-anechoic rooms— 72 стр.
Acoustics. Determination of sound power levels and sound energy levels of noise sources using sound pressure. Survey method using an enveloping measurement surface over a reflecting plane— 58 стр.
Acoustics. Noise emitted by machinery and equipment. Determination of emission sound pressure levels at a work station and at other specified positions in an essentially free field over a reflecting plane with negligible environmental corrections— 44 стр.
Acoustics. Noise emitted by machinery and equipment. Determination of emission sound pressure levels at a work station and at other specified positions applying approximate environmental corrections— 50 стр.
