GB/T 19889.3-2005声学　建筑和建筑构件隔声测量　第3部分：建筑构件空气声隔声的实验室测量.pdf

ICS 91.120.30 A 59 通a 中 华 人 民 共 和 国 国 家 标 准 GB/T 19889.3-2005/ISO 140-3:1995 声学 建筑和建筑构件隔声测量 第3部分:建筑构件空气声隔声的实验室测量 Acoustics-Measurementofsoundinsulationinbuildingsandofbuildingelements- Part3:Laboratorymeasurementsofairbornesoundinsulationofbuildingelements (ISO 140-3:1995,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 国家 标 准 化 管 理 委 员 会 GB/T19889.3-2005/ISO 140-3:1995 目 次 前言 ·········，，···················，，··········，································································1 1 范围 ···············································································································…… 1 2 规范性引用文件 ···，························································，··，········，·，····‘·.··……，，… 1 3 术语和定义 .·1 4 测量设备 ················································································，······················.·…… 3 5 测试安排 ·， ················，·······················11················，… 3 5.1 房间 ··········································································································…… 3 5.2 试件 ···············，············································，，·············································，··… 3 6 测试步骤和计算 ···········‘·························，················，·······，···一·，·一·，.·.·…… ，，二 5 6.1 声源室声场的产生 ···························································.·… … 5 6.2 平均声压级的测量 ······，，······】···甲，···········，·········，，，，…… ，.·······.·…… ，..… 6 6.3 测量频率范围 ·，···········，·················································································…… 6 6.4混响时间测量与吸声量的估算 ······································，···········‘···.·...·..··……6 6.5 对背景噪声的修正 .····，，········，，···…… ，·····‘二，，，·……， … 7 7 精密度 ·······························