BS EN 673:1998:2007 Edition
$102.76
Glass in building. Determination of thermal transmittance (U value). Calculation method
| Published By | Publication Date | Number of Pages |
| BSI | 2007 | 18 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 1 | BRITISH STANDARD |
| 2 | National foreword |
| 4 | Foreword Foreword to amendment A1 Foreword to amendment A2 Contents |
| 5 | 1 Scope 2 Normative references |
| 6 | 3 Symbols |
| 7 | 4 Definitions 5 Basic formulae |
| 9 | 6 Basic material properties 6.1 Emissivity 6.2 Gas properties |
| 10 | 6.3 Infrared absorption of the gas Table 1 – Gas properties |
| 11 | 7 External and internal heat transfer coefficients 7.1 External heat transfer coefficient� 7.2 Internal heat transfer coefficient� 7.3 Design values |
| 12 | 8 Declared values: standardized boundary conditions 9 Expression of the results |
| 13 | 10 Test report |
| 14 | Annex A (normative) Determination of normal and corrected emissivity A.1 Determination of normal emissivity Table A.1 – Thirty selected wavelengths |
| 15 | A.2 Determination of corrected emissivity� Table A.2 – Factors to compute corrected emissivity Annex B (normative) Iteration procedure for glazing with more than one gas space |
| 16 | Table B.1 – Example of iteration for a triple glazing with the following characteristics: structure 4/12/4/12… Annex C (informative) Bibliography |
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