Acoustics - Determination of sound power levels of noise sources using sound pressure - Engineering method in an essential free field over a reflecting plane (ISO 3744:1994); German version EN ISO 3744:1995— 28 стр.
Acoustics - Noise emitted by machinery and equipment - Determination of emission sound pressure levels at a work station and at other specified positions from the sound power level (ISO 11203:1995); German version EN ISO 11203:1995— 9 стр.