GB/T 18699.1-2002声学　隔声罩的隔声性能测定　第1部分：实验室条件下测量(标示用).pdf

17.140.01 zICs32 中 华 人 民 共 和 国 国 家 标 准 GB/T 18699.1一2002 eqvISO 11546-1:1995 声学 隔声罩的隔声性能测定 第 1部分:实验室条件下测量 (标示用) Acoustics-Determinationofsoundinsulation performancesofenclosures Part1:Measurementsunderlaboratoryconditions (fordeclarationpurposes) 2002一03一26发布 2002门2一01实施 中 华 人 民 共 和 国 国家质量 监督检验检疫 总局 发 布 GB/T 18699.1-2002 目 次 前言 ·… ISO前言 1 1 范围 ·… C 白 引用标准 3 定义 ·····························。···············································，······························…… 2 4 测量仪器 ·················…… “·················································，·······。····················…… 3 5 测量方法的选用 3 6 实际声源法 ··················。·········································，········································，…… 4 7 互易法 .·5 8 人工声源法 ··························································································.·，······…… 6 9 测量不确定度 ···············。··················································································…… 7 10 记录和报告内容···································”·········。·········································一· ’··… 7 附录A(标准的附录)人工声源 ·······························。····························…… ·‘·…’二二‘9 附录B(提示的附录)人工声源频谱一例 .·二‘’二·‘二‘““·‘10 附录C(提示的附录) 对特定的噪声频谱估算隔声罩的隔声值 ···················..······。···········…… 10 GB/T 18699.1-2002 前 言 本标准等效采用ISO11546-1:1995《声学 隔声罩的隔声性能测定 第1部分:实验室条件下测 量》。为适合我国国情有些章节做了调整: 1ISO11546-1标准中一段不属干范“围”的内容，按照我国标准的要求移到第5章:测“量方法的 选用”中 2 为使标准叙述顺畅，把原来插在第4章 “测量方法的选用”和第6章 “测试方法”之间的第5章 “测量仪器”，放在前面成为第4章，这样 “测量方法的选用”为第5章，紧接着是第6章的 “测试方法”。 3 为避免ISO11546-1中过多的重复，同时使标准的题