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Norm
ÖNORM EN 673
Issue date: 2011 03 15
Glass in building - Determination of thermal transmittance (U value) - Calculation method
This European Standard specifies a calculation method to determine the thermal transmittance of glazing with
flat and parallel surfaces.
This European Standard applies ...
Valid
§ Legal References
Publisher:
Austrian Standards International
Format:
Digital | 20 Pages
Language:
German
| English
| Download GER/ENG
Optionally co-design standards:
ICS
This European Standard specifies a calculation method to determine the thermal transmittance of glazing with
flat and parallel surfaces.
This European Standard applies to uncoated glass (including glass with structured surfaces, e.g. patterned
glass), coated glass and materials not transparent in the far infrared which is the case for soda lime glass
products, borosilicate glass and glass ceramic. It applies also to multiple glazing comprising such glasses
and/or materials. It does not apply to multiple glazing which include in the gas space sheets or foils that are far
infrared transparent. The procedure specified in this European Standard determines the U value (thermal
transmittance) in the central area of glazing.
The edge effects due to the thermal bridge through the spacer of a sealed glazing unit or through the window
frame are not included. Furthermore, energy transfer due to solar radiation is not taken into account. The
effects of Georgian and other bars are excluded from the scope of this European Standard.
ÖNORM EN 673
2011 03 15
Glass in building - Determination of thermal transmittance (U value) - Calculation method
Norm
↖
ÖNORM EN 673
2003 08 01
Glass in building - Determination of thermal transmittance (U value) - Calculation method (EN 673:19...
Norm
ÖNORM EN 673/A1
2001 03 01
Glass in building - Determination of thermal transmittance (U value) - Calculation method (Amendment...
Norm
ÖNORM EN 673
1998 03 01
Glass in building - Determination of thermal transmittance (U value) - Calculation method
Norm
Norm
Issue date :
1998 03 01
Glass in building - Determination of thermal transmittance (U value) - Guarded hot plate method
Norm
Issue date :
1998 03 01
Glass in building - Determination of thermal transmittance (U value) - Heat flow meter method