NBN EN ISO 22007-4:2024

Plastics - Determination of thermal conductivity and thermal diffusivity - Part 4: Light flash method (ISO 22007-4:2024)

ACTIVE

About this standard

Languages
German, English and French
Type
NBN
Standards committee
CEN/TC 249
Status
ACTIVE
Publication date
17 January 2024
Replaces
NBN EN ISO 22007-4:2017
ICS Code
83.080.01 (Plastics in general)
Withdrawn Date
Price
€ 121,00

About this training

Summary

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 light 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 is applicable to 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.