ISO 11201:2010规定了一种在反射面上方的基本自由场中，在工作站和附近其他指定位置测定机械或设备发射声压级的方法。工作站由操作员占用，可位于开放空间、被测源运行的房间、固定在被测源上的驾驶室或远离被测源的外壳内。一个或多个指定位置可能位于工作站附近，或有人值守或无人值守机器附近。这种姿势有时被称为旁观者姿势。 发射声压级被确定为A加权级。此外，在频带和C- 如果需要，可根据ISO 11201:2010确定加权峰值发射声压级。 采用ISO 11201:2010规定的方法，可获得精度等级1（精度等级）或精度等级2（工程等级）的结果。校正适用于背景噪声，但不适用于声学环境。给出了测试源的安装和操作说明，以及工作站和其他指定位置的麦克风位置选择说明。测量的一个目的是在规定的环境条件和标准化的安装和操作条件下，比较给定系列机器的不同单元的性能。 ISO 11201中规定的方法: 2010适用于ISO 12001中定义的所有类型的噪声（稳定、非稳定、波动、孤立声能爆发等）。 ISO 11201:2010中规定的方法适用于所有类型和尺寸的噪声源。 测试环境的类型会影响发射声压级测定的准确性。对于ISO 11201:2010的应用，需要反射面（室内或室外）上的基本自由场。 ISO 11201:2010适用于测量发射声压级的工作站和其他指定位置。 可进行测量的适当位置包括:a）位于被测源附近的工作站；许多工业机器和家用电器都是如此； b） 驾驶室内的工作站，该工作站是被测源的组成部分；这是许多工业卡车和土方机械的情况；c） 由制造商提供的部分或全部外壳（或屏幕后面）内的工作站，作为被测源的组成部分；d） 被测试源部分或全部封闭的工作站；一些大型工业机器可能会遇到这种情况；e） 由不负责受试源运行的人员占据的旁观者位置，但这些人员可能偶尔或持续在受试源附近；f） 其他指定位置，不一定是工作站或旁观者位置。 工作站也可以位于操作员移动的指定路径上。

ISO 11201:2010 specifies a method for determining the emission sound pressure levels of machinery 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 positions. Emission sound pressure levels are determined as A-weighted levels. Additionally, levels in frequency bands and C-weighted peak emission sound pressure levels can be determined in accordance with ISO 11201:2010, if required. With the method specified in ISO 11201:2010, results of accuracy grade 1 (precision grade) or accuracy grade 2 (engineering grade) are obtained. Corrections are applied for background noise, but not for the acoustic environment. Instructions are given for the mounting and operation of the source under test and for the choice of microphone positions for the work station and for other specified positions. One purpose of the measurements is to permit comparison of the performance of different units of a given family of machines, under defined environmental conditions and standardized mounting and operating conditions. The method specified in ISO 11201:2010 is suitable for all types of noise (steady, non-steady, fluctuating, isolated bursts of sound energy, etc.) defined in ISO 12001. The method specified in ISO 11201:2010 is applicable to all types and sizes of noise sources. The type of test environment influences the accuracy of the determination of emission sound pressure levels. For the application of ISO 11201:2010 an essentially free field over a reflecting plane (indoors or outdoors) is required. ISO 11201:2010 is applicable to work stations and other specified positions where emission sound pressure levels are to be measured. Appropriate positions where measurements may be made include the following: a) work station located in the vicinity of the source under test; this is the case for many industrial machines and domestic appliances; b) work station within a cab which is an integral part of the source under test; this is the case for many industrial trucks and earth-moving machines; c) work station within a partial or total enclosure (or behind a screen) supplied by the manufacturer as an integral part of the source under test; d) work station partially or totally enclosed by the source under test; this situation may be encountered with some large industrial machines; e) bystander positions occupied by individuals not responsible for the operation of the source under test, but who may be in its immediate vicinity, either occasionally or continuously; f) other specified positions, not necessarily work stations or bystander positions. The work station may also lie on a specified path along which an operator moves.