Standard No.:	GB/T 6881.2-2017
English Name:	Acoustics-Determination of sound power levels and sound energy levels of noise sources using sound pressure-Engineering methods for small movable sources in reverberant fields-Comparison method for a hard-walled test room
Chinese Name:	声学 声压法测定噪声源声功率级和声能量级 混响场内小型可移动声源工程法 硬壁测试室比较法
Professional Classification:	GB    National Standard
Issued by:	AQSIQ; SAC
Issued on:	2017-11-01
Implemented on:	2018-5-1
Status:	valid
Superseding:	GB/T 6881.2-2002 Acoustics--Determination of sound power levels of noise sources--Enginerring methods for small,movable sources in reverberant field--Part 1:Comparison method for hard-walled test room
Language:	English
File Format:	PDF
Word Count:	14500 words
Price(USD):	430.0
Delivery:	via email in 1~5 business day

本部分规定了确定噪声源声功率级或声能量级的方法。该方法通过测量并比较安装于规定特性的硬壁测试室中的被测声源（机器或设备）和经过校准的标准声源发射的声压级，由测得的声压级计算被测声源的倍频带声功率级（或猝发声、瞬态噪声情况下的声能量级）。A计权声功率级或A计权声能量级由倍频带声级计算获得。