噪声标准规范文件：GBT 19512-2004 声学 消声器现场测量.pdf

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1、ICS91.120.20Z32荡黯中华人民共和国国家标准GB/T19512-2004/ISO11820:1996声学消声器现场测量Acoustics-Measurementsonsilencersinsitu(ISO11820:1996,IDT)2004-05-13发布2004-12-01实施中华人民共和国国家质量监督检验检疫总局发布中国国家标准化管理委员会GB/T19512-2004/LSO11820:1996目次前言··································································

2、···············································⋯⋯工引言·······························，······················‘···················································⋯⋯81范围·...............................·········，·，，·甲，·······················‘······························一11.1概述，····

3、·············，，···························，·················，····，···································⋯⋯I1.2本标准的应用范围········································································...··········...⋯⋯11.3被测量··································································

4、·····································⋯⋯12规范性引用文件······················································，，···················..···········⋯⋯13术语和定义·.....................············，，·········‘·················‘·················，，··············⋯⋯24背景噪声的修正···················‘·····

5、·········，，················，，···························，，···.....⋯⋯，二54.1传递声压级差···········，·························································..·.........···........·⋯⋯54.2插人声压级差···························································································.·

6、.⋯⋯55安装条件······················································································，············⋯⋯56仪器·······················，···········································，，，·，································⋯⋯76.1声学仪器·············，，，，，···】】】】】·····甲，·，，，，············

7、·······‘············，，，，，，·，-。·····一76.2流速、静压和温度的测量设备···········，，，，·················⋯⋯。···。·..·......·.............⋯⋯77测量对象和测量条件·······。·····················，，·····················································.··...⋯⋯78测量程序···············....................................

8、......................................................