1ICS13.140 CCSZ05 21 辽宁省地方标准 DB21/T3946—2024 交通运输噪声污染缓解工程技术规范 隔声窗措施 Technicalspecificationfortrafficnoisemitigationprojectmeasuresforsound insulationwindows 2024-04-30发布 2024-05-30实施 辽宁省市场监督管理局  发布 DB21/T3946—2024 I目次 前言..................................................................................II 1范围................................................................................1 2规范性引用文件......................................................................1 3术语和定义..........................................................................1 4适用条件.............................................................................2 5隔声窗应用设计.......................................................................2 5.1一般规定........................................................................3 5.2声学设计........................................................................3 5.3应用选型........................................................................3 6安装施工方法........................................................................4 6.1一般规定........................................................................4 6.2安装施工方案....................................................................4 7质量验收............................................................................4 7.1一般规定........................................................................4 7.2验收方法........................................................................4 附录A（资料性）室内噪声限值.........................................................6 附录B（资料性）室内吸声量A的确定..................................................7 附录C（规范性）噪声敏感建筑物户外噪声级LA1的确定方法...............................10 附录D（资料性）隔声窗施工流程......................................................12