EN 674:1997

EN 674:1997 is a standard published by the European Committee for Standardization (CEN). Its full title is "Glass in building - Determination of thermal transmittance (U value) - Guarded hot plate method". This standard covers: This European Standard specifies a measurement method to determine the thermal transmittance of glazing with flat and parallel surfaces. Structured surfaces, e.g. patterned glass, can be considered to be flat. This European Standard applies to multiple glazing with outer panes which are not transparent to far infrared radiation, which is the case for soda lime glass products, borosilicate glass and glass ceramics. Internal elements may be far infrared transparent.

This European Standard specifies a measurement method to determine the thermal transmittance of glazing with flat and parallel surfaces. Structured surfaces, e.g. patterned glass, can be considered to be flat. This European Standard applies to multiple glazing with outer panes which are not transparent to far infrared radiation, which is the case for soda lime glass products, borosilicate glass and glass ceramics. Internal elements may be far infrared transparent.

EN 674:1997 is classified under the following ICS (International Classification for Standards) categories: 81.040.20 - Glass in building. The ICS classification helps identify the subject area and facilitates finding related standards.

EN 674:1997 has the following relationships with other standards: It is inter standard links to EN 674:2011, EN 13997:2003, EN 13363-1:2003+A1:2007; is excused to EN 675:1997. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

EN 674:1997 is associated with the following European legislation: EU Directives/Regulations: 305/2011, 89/106/EEC; Standardization Mandates: M/135, M/BC/CEN/91/7. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.

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