BS 7134-4.2(1990) : 1990
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
TESTING OF ENGINEERING CERAMICS - THERMO-PHYSICAL PROPERTIES - METHOD FOR THE DETERMINATION OF THERMAL DIFFUSIVITY BY THE LASER FLASH (OR HEAT PULSE) METHOD
Hardcopy , PDF
15-11-1997
English
01-01-1990
Foreword
Committees responsible
Method
1 Scope
2 Definitions
3 Principle
4 Apparatus
5 Test pieces
6 Calibration
7 Test procedure
8 Results
9 Test report
Appendices
A Mathematical derivation of calculations
B Deviations from ideal behaviour
Tables
1 Values of constant W for a range of transient times
2 Finite pulse time correction constants
Figures
1 Schematic representation of transient at rear face of
test piece
2 Schematic diagram of thermal diffusivity apparatus
3 Schematic diagram of ambient and low temperature test
piece holder
4 Heat loss correction curves
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