BS EN 1634-3:2004(2007)
门和百叶窗组件、可打开的窗户和建筑硬件元件的耐火和防烟测试 - 第3部分:门和百叶窗组件的防烟测试
Fire resistance and smoke control tests for door and shutter assemblies, openable windows and elements of building hardware — Part 3 : Smoke control test for door and shutter assemblies