《GBT19512-2004-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、.............................................................