GBT19887-2005 声学 可移动屏障声衰减的现场测量 - 下载地址.pdf

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1、ICS17.140.01Z32中华人民共和国国家标准GB/T19887-2005/ISO11821:1997声学可移动屏障声衰减的现场测量Acoustics-Measurementoftheinsitusoundattenuationofaremovablescreen(ISO11821:1997，IDT).www.bzxzk.com2005-09-09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国家标准化管理委员会GB/T19887-2005/ISO11821:1997目次前言······

2、···································，·······································································，⋯⋯皿引言···························································，··················································，··⋯⋯IV1范围··，····························

3、·····················································，··························⋯⋯12规范性引用文件················································，············‘··.···················.......⋯⋯13术语和定义·········································································

4、·····························⋯⋯14测量仪器·.....................................................................·····························，····⋯⋯25现场声衰减的测定····················································⋯⋯，················............⋯⋯，.⋯36测量不确定度···············

5、·······································································⋯⋯，，，，.⋯，·.二67记录内容·····································，··································································⋯⋯78报告内容·······························································

6、···················，·········，···········⋯⋯7参考文献··············································，································································⋯⋯9.www.bzxzk.com.GB/T19887-2005/ISO11821:1997月U吕本标准等同采用ISO11821;1997《声学可移动屏障声衰减的现场测量》。本标准等同采用国际标准时，将其中引用

7、文件和参考文献内的ISO标准用我国已编制的相应国家标准代替，并进行了编辑性修改。本标准由中国科学院提出。本标准由全国声学标准化技术委员会(SAC/TC17)归口。本标准起草单位:中国科学院声学研究所、长沙奥邦环保实业有限公司、营口盼盼新型环保器材有限公司。本标准主要起草人:程明昆、莫建炎、徐欣、崔萍萍、李林、武道忠。.www.bzxzk.com.GB/T19887-2005/ISO11821:1997引言本标准规定了现场测定工业用可移动屏障声衰减性能的方法。屏障可以是任何一种隔断声源与接收者之间噪声辐射路径的物体(例如:板

8、、柔性的幕帘等);它可以是平面形的或弧形的。可移动屏障是一种不改变其他环境条件就能拆除的屏障。这种屏障用来防护一个工作位置或一个完整的区域免受声源辐射的噪声影响。它可用于一个有固定位置的操作者的区域;也可用于有几个无固定位置的操作者所在的区域。例如:屏障可用作维护装置来降低维修时指定位置的噪声影响，还可