DS EN 12412-2:2003
DS EN 12412-2:2003 Thermal Performance Of Windows, Doors And Shutters - Determination Of Thermal Transmittance By Hot Box Method - Part 2: Frames Defines a method, based on EN ISO 8990 and EN ISO 12567-1, to measure the thermal transmittance of frame and sash components of windows and doors, including mullions and transoms.