《GBT19889.4-2005-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

《《GBT19889.4-2005-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》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。

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实施中华人民共和国国家质量监督检验检疫总局发布中国

2、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···········································································································，··⋯12规范性引用文件······

3、···。···，·····。‘·，·，，····。“，，·········，，·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····················································································.......····⋯⋯36.1通则。·····，·······································。··········。···，·····

5、·······，，·················‘·············⋯⋯36.2声源室声场的产生····························································⋯⋯，....·..··..⋯⋯，.⋯36.3平均声压级测量···························································..·········.....·······..·......⋯⋯46.4测量的频率范围············，·，，····‘····，········甲，····

6、·············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。。··············································。，·······························一，...⋯⋯，二57精密度···················································

7、，··································，，······‘··，·······‘··，·⋯58结果表达········································································································⋯⋯59测试报告··，·，···············，······。，，，，······‘··，，··········，···························。············