BS EN ISO 22007-4:2017
$142.49
Plastics. Determination of thermal conductivity and thermal diffusivity – Laser flash method
| Published By | Publication Date | Number of Pages |
| BSI | 2017 | 24 |
This document specifies a method for the determination of the thermal diffusivity of a thin solid disc of plastics in the thickness direction by the laser flash method. This method is based upon the measurement of the temperature rise at the rear face of the thin-disc specimen produced by a short energy pulse on the front face.
The method can be used for homogeneous solid plastics as well as composites having an isotropic or orthotropic structure. In general, it covers materials having a thermal diffusivity, α, in the range 1 × 10−7 m2⋅s−1 < α < 1 × 10−4 m2⋅s−1. Measurements can be carried out in gaseous and vacuum environments over a temperature range from −100 °C to +400 °C.
NOTE For inhomogeneous specimens, the measured values can be specimen thickness dependent.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | National foreword |
| 4 | European foreword |
| 6 | Foreword |
| 7 | 1 Scope 2 Normative references 3 Terms and definitions |
| 8 | 4 Principle 5 Apparatus |
| 11 | 6 Test specimen 6.1 Shape and dimension of the specimen 6.2 Preparation and conditioning of test specimen 6.3 Coating the specimen |
| 12 | 7 Calibration and verification 7.1 Calibration of apparatus 7.2 Verification of apparatus 8 Procedure |
| 14 | 9 Data analysis |
| 15 | 10 Uncertainty 11 Test report |
| 17 | Annex A (informative) Correction for finite pulse duration |
| 18 | Annex B (informative) Alternative methods of calculating thermal diffusivity |
| 19 | Annex C (normative) Samples and test specimen preparation for injection mouldable thermoplastics and thermosets |
| 23 | Bibliography |
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BS EN ISO 22007-4:2017 – TC:2020 Edition
Tracked Changes. Plastics. Determination of thermal conductivity and thermal diffusivity – Laser flash method Published…
