EN ISO 22007-3:2012

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and units
5 Principle
6 Apparatus
7 Test specimen
8 Procedure
9 Analysis of results
10 Calibration and verification of apparatus and method
11 Precision and bias
12 Test report
Annex A (informative) - Mathematical background to temperature
        wave analysis
Annex B (informative) - Typical thermal-diffusivity data for a
        typical polyimide
Annex C (informative) - Example of frequency-thickness
        relationships required for acceptable measurements
Annex D (informative) - Numerical simulations of the phase
        shift, deltatheta, as a function of kd and xi
Annex E (informative) - Examples of uncertainties in
        thermal-diffusivity measurements
Bibliography

ISO 22007-3:2008 specifies a temperature wave analysis method for the determination of the thermal diffusivity of thin films and plates of plastics in the through-thickness direction. The method can be used on plastics in either the solid or molten state, and having either an isotropic or an orthotropic structure.

The method covers values of the thermal diffusivity, α, in the range 1,0 x 10-8 m2s-1 < α < 1,0 x 10-4 m2s-1.

Measurements can be performed either in air or in another atmosphere, e.g. an inert gas, at atmospheric pressure or at other, reduced or elevated, pressures, or under a vacuum, at a variety of temperatures.