GB/T 19887-2005声学　可移动屏障声衰减的现场测量.pdf

ICS 17.140.01 Z 32 中 华 人 民 共 和 国 国 家 标 准 GB/T 19887-2005/ISO 11821:1997 声学 可移动屏障声衰减的现场测量 Acoustics- Measurementoftheinsitu soundattenuation ofaremovablescreen (ISO11821:1997，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/T 19887-2005/ISO 11821:1997 目 次 前言 ·········································，·······································································，…… 皿 引言 ···························································，··················································，··…… IV 1 范围 ··，·················································································，··························…… 1 2 规范性引用文件 ················································，·············‘·.··················.·…… 1 3 术语和定义 ······································································································…… 1 4 测量仪器 .······························，····…… 2 5 现场声衰减的测定 ····················································……，···············.·……，.… 3 6 测量不确定度 ······················································································……，，，，.…，·.二6 7 记录内容 ·····································，··································································…… 7 8 报告内容 ··················································································，·········，···········…… 7 参考 文献 ··············································，································································…… 9 GB/T 19887-2005/ISO 11821:1997 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