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- Measurement of sound insulation in buildings and of building elements- Part 3 : Laboratory measurements of airborne sound insulation of building elements (ISO 140-3:1995,IDT) 2005-09-09发布 2006-04-01实施   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 国家、地方性标准规范 GB/T 19889.3-2005/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