ISO 22007-2:2008 塑料 导热率和热扩散率的测定 第2部分：瞬态平面热源（热盘）法

标准编号：ISO 22007-2:2008

中文名称：塑料 导热率和热扩散率的测定 第2部分：瞬态平面热源（热盘）法

英文名称：Plastics — Determination of thermal conductivity and thermal diffusivity — Part 2: Transient plane heat source (hot disc) method

发布日期：2008-12

标准范围

1.1 This part of ISO 22007 specifies a method for the determination of the thermal conductivity and thermaldiffusivity, and hence the specific heat capacity per unit volume, of plastics. The experimental arrangementcan be designed to match different specimen sizes. Measurements can be made in gaseous and vacuumenvironments at a range of temperatures and pressures.1.2 This method is suitable for testing homogeneous and isotropic materials, as well as anisotropicmaterials with a uniaxial structure. In general, the method is suitable for materials having values of thermalconductivity, λ, in the approximate range 0.01 W?m?K ＜ λ ＜ 500 W?m?K and values of thermaldiffusivity, α, in the range 5 × 10 m?s ≤ α ≤ 10 m?s, and for temperatures, T, in the approximaterange 50 K ＜ T ＜ 1 000 K.1.3 The thermal-transport properties of liquids can also be determined, provided care is taken to minimizethermal convection.

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