DIN EN 12412-2 E:1998-01 Thermal performance of windows, doors and shutters - Determination of thermal transmittance by hot box method - Part 2: Frames
2003DIN EN 12412-2:2003-11 Thermal performance of windows, doors and shutters - Determination of thermal transmittance by hot box method - Part 2: Frames; German version EN 12412-2:2003
2003DIN EN 12412-2:2003 Thermal performance of windows, doors and shutters - Determination of thermal transmittance by hot box method - Part 2: Frames; German version EN 12412-2:2003
1970DIN EN 12412-2 E:1998-01 Thermal performance of windows, doors and shutters - Determination of thermal transmittance by hot box method - Part 2: Frames