ISO 22007-4:2017 塑料 导热率和热扩散率的测定 第4部分：激光闪光法

标准编号：ISO 22007-4:2017

中文名称：塑料 导热率和热扩散率的测定 第4部分：激光闪光法

英文名称：Plastics — Determination of thermal conductivity and thermal diffusivity — Part 4: Laser flash method

发布日期：2017-06

标准范围

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<1×10⁻⁴m²⋅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.

标准预览图