DS/EN ISO 11201:2010 声学 机器和设备发出的噪声 在反射平面上的基本自由场中工作站和其他指定位置的发射声压级的测定，环境修正可忽略不计
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
1.1 GeneralThis International Standard specifies a method for determining the emission sound pressure levels ofmachinery or equipment, at a work station and at other specified positions nearby, in an essentially free field over a reflecting plane. A work station is occupied by an operator and may be located in open space, in the room where the source under test operates, in a cab fixed to the source under test, or in an enclosure remote from the source under test. One or more specified positions may be located in the vicinity of a work station, or in the vicinity of an attended or unattended machine. Such positions are sometimes referred to as bystander pos