1.范围1。1本标准涵盖了在工作环境而非标准化环境中测量工业设备发出的空气传播声音的程序。1.2本标准描述了以下三个程序:（a）确定设备周围代表点a加权声级的程序（见第5条）；（b） 确定设备A端声功率级的程序（见第6条）；（c）确定设备周围倍频程或三倍频程带声压级的程序（见第7条）。1.3本标准适用于本质上连续的设备噪声测量（见附录A和附录d B），并提供了设备长期平均声发射的说明。

1. Scope1.1This Standard covers procedures for the measurement of airborne sound originating from industrial equipment in the working environment rather than in a standardized environment.1.2This Standard describes the following three procedures:(a) A procedure for determining the A-weighted sound levels at representative points around the equipment (see Clause 5);(b) A procedure for determining A-weightend sound power levels of the equipment (see Clause 6); and(c) A procedure for determining sound pressure levels in octave or third octave bands around the equipment (see Clause 7).1.3This Standard applies to the measurement of equipment noises that are essentially continuous in nature (see Appendices A an d B) and it provides descriptions of the long term average sound emission of the equipment.