GBT6881-2002声学声压法测定噪声源声功率级.pdf

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1、17.140.01IzCS32中华人民共和国国家标准Gs/'r6881.1一2002idtISO3741:1999声学声压法测定噪声源声功率级混响室精密法Acoustics-Determinationofsoundpowerlevelsofnoisesourcesusingsoundpressure-Precisionmethodsforreverberationrooms2002一03一26发布2002一12一01实施中华人民共和国发布国家质量监督检验检疫总局Gs/T6881.1-2002目次前言················································

2、······················。·····································⋯⋯1ISO前言·...................................................................······································⋯⋯N。引言······。···。···············。········。···。·······。····。·························································⋯⋯11范围····

3、·······························································································价········⋯⋯22引用标准·。·······。·······························································································⋯⋯23术语和定义····························································，·············

4、·········，··················⋯⋯34测量不确定度············。···。····。·············。··································，····························⋯⋯45声学环境·······。····························。································································⋯⋯55.1概述··············································

5、··························································⋯⋯55.2测试室的容积和形状·.........................................................................................55.3测试室吸收的要求········。···。····················································...··········.·.....·.⋯⋯65.4背景噪声要求··························

6、················。····················。·····························⋯⋯65.5温度、湿度、气压的要求······················································.·..·.·.···.....·..·..·....⋯⋯66仪器·.......................................................···············。····。···············。·········。·······⋯⋯66.1概述···········

7、·····························································································。··⋯66.2校准··························································。·············。······。·········。····。··