EN 15269-20:2009 門,百葉窗和可開窗組合,包括建筑五金元件的耐火性和/或煙霧控制試驗結果的擴展應用.第20部分:鉸接和樞軸鋼材,木材和金屬框的煙霧控制
Extended application of test results for fire resistance and/or smoke control for door, shutter and openable window assemblies, including their elements of building hardware - Part 20: Smoke control for hinged and pivoted steel, timber and metal framed gl