GB/T 18699.2-2002声学　隔声罩的隔声性能测定　第2部分：现场测量(验收和验证用).pdf

17.140.01 zICS32 中 华 人 民 共 和 国 国 家 标 准 GB/T 18699.2-2002 eqvISO11546-2:1995 声学 隔声罩的隔声性能测定 第2部分:现场测量 (验收和验证用) Acoustics-Determinationofsoundinsulation performancesofenclosures -Part2:Measurementsinsitu (foracceptanceandverificationpurposes) 2002一03一26发布 2002门2一01实施 中 华 人 民 共 和 国 发 布 国家质量监督检验检疫总局 GB/T 18699.2-2002 目 次 前言····。···············。·，········价··············。·。···‘·······················。··，····················。。··… 1 ISO前言 ······，····，·，·············· ···，······*·，·。··········二··，····。·，·····1，····，····4·， N 1 范围 ············，‘ ·，，····，·········· · ·，·········‘···“·， ····，·，，·········‘··一 I 2 引用标准··，········· ···，“····，，·············，，········‘·········二··” ····，·····，······… …1 3 定义·························。·················。····················································，，······……2 4 测量仪器 ·········································。········。。····················。，·。·····························……3 5测量方法的选用 ·······。·······················，··。····························。。。········，··············，。··一 3 6 实际声源法(用实际声源测试隔声罩的方法) ··············，·····································“二4 7不用实际声源测试隔声里的方法·······二·‘···········，·········”···!····，…’·’一”·’”“ 5 8测量不确定度 t“···，“···，.，·········， ···，··，··，··，··，···················*·‘，，····…… 6 9 记录和报告 ·······”··，.················”····· ····，.··，，·····，.···‘···。·。········，·‘······ ·，… 7 附录A(标准的附录)人工声源 ·一 “·‘二‘··…””’…‘二9 附录B(提示的附录)人S:声源频谱一例··，·················、、········”·······‘，，一’·’‘… ’二’“10 附录C(提示的附录) 评价现场测量所用的不同测试环境的适用性的指南 ·········，.、··········……10 附录D(提示的附录)对特定的噪声频谱估算隔声罩的隔声值 ·····“········一 12