BS EN 12898:2001
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
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Glass in building. Determination of the emissivity
Hardcopy , PDF
08-04-2019
English
15-04-2001
Important note : Users cannot be edited or removed once added to your Multi user PDF.
Foreword
1 Scope
2 Symbols
3 Terms and definitions
4 Brief outline of the procedure to determine
corrected emissivity
5 Spectral normal reflectance and transmittance
measurements
6 Calculation of total normal reflectance, corrected
emissivity and total normal transmittance
7 Diffuse reflectance measurements
8 Test report
Annex A (normative) Tables for determining total normal
reflectance and total corrected emissivity
Annex B (informative) Procedures to improve the accuracy
of spectral normal reflectance measurements
Bibliography
Specifies a procedure for determining the emissivity at room temperature of surface of glass and coated glass. The procedure, is based on spectrophotometric regular reflectance measurements at near normal incidence on non-infrared transparent materials.
| Committee |
B/520
|
| DevelopmentNote |
Supersedes 97/104705 DC. (03/2005)
|
| DocumentType |
Standard
|
| Pages |
16
|
| PublisherName |
British Standards Institution
|
| Status |
Withdrawn
|
| SupersededBy | |
| Supersedes |
This draft European Standard specifies a procedure for determining the emissivity at room temperature of the surfaces of glass, coated glass and other glazing components not transparent in the far infrared. The emissivity is necessary for taking into account heat transfer by radiation from surfaces at the standard temperature of 283 K in the determination of the U value and of the total solar transmittance of glazing according to B.1 to B.5.
| Standards | Relationship |
| EN 12898:2001 | Identical |
| ONORM EN 12898 : 2001 | Identical |
| I.S. EN 12898:2001 | Identical |
| UNE-EN 12898:2001 | Identical |
| UNI EN 12898 : 2002 | Identical |
| NF EN 12898 : 2001 | Identical |
| NEN EN 12898 : 2001 | Identical |
| DIN EN 12898:2001-04 | Identical |
| SN EN 12898 : 2001 | Identical |
| NS EN 12898 : 1ED 2001 | Identical |
| NBN EN 12898 : 2001 | Identical |
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