GB/T 6881.3-2002声学　声压法测定噪声源声功率级　混响场中小型可移动声源工程法　第2部分：专用混响测试室法.pdf

ICS17.140.01 z32 中 华 人 民 共 和 国 国 家 标 准 Gs/T6881.3-2002 idtISO3743-2:1994 声学 声压法测定噪声源声功率级 混响场中小型可移动声源工程法 第2部分:专用混响测试室法 Acoustics-Determinationofsoundpowerlevelsofnoise sources-usingsoundpressure-Engineeringmethodsforsmall movablesourcesinreverberantfield -Part2:Methodsforspecialreverberationtestrooms 2002一03一26发布 2002一12一01实施 中 华 人 民 共 和 国 发 布 国家 质 量 监 督 检 验 检 疫 总 局 GB/T68813-2002 目 次 前言 ···········································································································…… B ISO前言 ······························，·····························.·，····································…… N 0 引言 ·····································································································..…… 1 1 范围 ···················。···········”········································································一· 2 2 引用标准 ··························································。···········..·····…… “。···········…… 3 3 定义 ·······································································································…… 4 4 专用混响室要求 ·······。············································。··················。··················。… 4 5 仪器 ·································································，····..····..····..················…… 6 6 被测声源的安装和运行 ··············································································..·……6 7 测试室中的测量 ··························································································…… 7 8 声功率级计算 .·10 9 记录内容 .·············…… 10 10 报告内容 ··。·········。··································