GBT 19889.4-2005 声学 建筑和建筑构件隔声测量 第4部分：房间之间空气声隔声的现场测量.pdf

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1、ICS91.120.30A59荡黔中华人.民共和国国家标准GB/T19889.4-2005/ISO140-4:1998声学建筑和建筑构件隔声测量第4部分:房间之间空气声隔声的现场测量Acoustics-Measurementofsoundinsulationinbuildingsandofbuildingelements-Part4:Fieldmeasurementsofairbornesoundinsulationbetweenrooms(ISO140-4:1998,IDT)2005-09-09发布2006-04-01实施本资料由微

2、信公众号jianzhu118整理持续更新中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/T19889.4-2005/I50140-4:1998目次前言························································，···········，··········，······························⋯⋯11范围·二································································

3、···········································，··⋯12规范性引用文件·········。···，·····。‘·，·，，····。“，，·········，，·卜】···⋯⋯『‘.·.·..··‘二，，.，··⋯，，.13术语和定义··································································，··································⋯⋯14测试设备·······················

4、··········。···························································。···········⋯⋯35测试安排···········，··········，，·········，································，···················‘·，········⋯⋯36测试方法和计算········································································

5、············.......····⋯⋯36.1通则。·····，·······································。··········。···，············，，·················‘·············⋯⋯36.2声源室声场的产生·····························································⋯⋯，....·..··..⋯⋯，.⋯36.3平均声压级测量···························

6、································..·········.....·······..·......⋯⋯46.4测量的频率范围············，·，，····‘····，········甲，·················一，·····。。·，，.····一，，甲..·‘···⋯⋯46.5混响时间测量和等效吸声量估算··，········································...···....................⋯⋯56.6背景噪声修正。。·········

7、·····································。，·······························一，...⋯⋯，二57精密度···················································，··································，，······‘··，·······‘··，·⋯58结果表达·····································································

8、···································⋯⋯59测试报告··，·，···············，······。，，，，······‘··，，··········，·············