BS EN ISO 12631:2017规定了计算幕墙热透射率的方法，包括: 安装在框架内或连接到框架上的玻璃和/或不透明面板。交叉引用:ISO 7345:1987ISO 10211:2017EN 675:2011EN 12412-2:2003ISO 12567-1:2010 Ed 2ISO 6946:2017EN 674:2011ISO 10077-2:2017ISO 10077-1:2017ISO 10291:1994（R10）ISO 9488:1999ISO 52000-1:2017ISO 10292:1994ISO 10456:2007EN 673:2011ISO 10293:1997（R08）ISO/TR 520222-2:2017CEN/TS 16629:2014ISO/TR 52000-2:2017CEN/TS当前所有的修订版均包括在购买时提供购买本文件。

BS EN ISO 12631:2017 specifies a method for calculating the thermal transmittance of curtain walls consisting of glazed and/or opaque panels fitted in, or connected to, frames.Cross References:ISO 7345:1987ISO 10211:2017EN 675:2011EN 12412-2:2003ISO 12567-1:2010 Ed 2ISO 6946:2017EN 674:2011ISO 10077-2:2017ISO 10077-1:2017ISO 10291:1994 (R10)ISO 9488:1999ISO 52000-1:2017ISO 10292:1994ISO 10456:2007EN 673:2011ISO 10293:1997 (R08)ISO/TR 52022-2:2017CEN/TS 16629:2014ISO/TR 52000-2:2017CEN/TS 16628:2014All current amendments available at time of purchase are included with the purchase of this document.