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GB/T 42919.4-2023 Active
GB/T 42919.4-2023 Plastics—Determination of thermal conductivity and thermal diffusivity—Part 4:Laser flash method
Abstract
This document describes a method for determining the thermal diffusion coefficient of plastic sheets in the thickness direction using laser flash method. This document is applicable to homogeneous solid plastics and composite materials with isotropic or orthotropic structures. This method is suitable for materials with a thermal diffusion coefficient of 1×10-7 m2s-1 to 1×10-4 m2s-1 in a gas or vacuum environment of -100 ℃ to 400 ℃. Note: For non-uniform samples, the measurement values may be affected by the thickness of the samples.
General Product Information
| Document Type | National standards |
|---|---|
| Standard Status | Active |
| Standard Code | GB/T 42919.4-2023 |
| CCS | Basic standards and general methods for synthetic resins and plastics |
| ICS | Plastic Composite |
| Implement Date | 2024-03-01 |
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