BS 874-3.1:1987
Superseded
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Methods for determining thermal insulating properties. Tests for thermal transmittance and conductance Guarded hot-box method
Hardcopy , PDF
English
27-02-1987
23-11-2007
Foreword
Committees responsible
Method
0 Introduction
1 Scope
2 Definitions
3 Principle
4 Apparatus
5 Test elements
6 Test procedure
7 Expression of results
8 Test report
Appendices
A The use of a hot-box apparatus to determine the heat
transfer coefficient of a test element smaller than
the metering area
B Heat transfer at surfaces
C Control of the guard space environment
Figures
1 Sketch of a guarded hot-box apparatus
2 Example of placement of thermocouples for assessment
of surface temperatur
3 Thermopile connections
4 Temperature measuring positions on each side of the
metering area of the test element
Determination of steady-state thermal transmittance and conductance of large building elements such as walls, roofs and floors using a guarded hot-box apparatus.
| Committee |
B/540
|
| DevelopmentNote |
Supersedes 85/71639 DC. (06/2004) Supersedes BS 874(1983). (07/2004) Supersedes BS 874(1973). (12/2007)
|
| DocumentType |
Standard
|
| Pages |
24
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
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