GB/T 12825-2003 Specifies the determination method of resilience hardness of polymer porous materials, using the concave degree method. Hardness of this kind of material is widely used in many fields, and its Hardness is a key performance indicator. The standard specifies the scope of applicable materials, and introduces the principle of concave degree method in detail. Specifies the selection, accuracy requirements and calibration methods of test instruments, and standardizes the preparation process of samples to ensure that the samples meet the test conditions. Strictly standardizes the test operation, including details such as indenter size, loading force size, loading time, and concave depth measurement. The calculation and representation of the results are given to provide the basis for accurate determination of hardness of materials, and help the quality control and performance optimization of related products.
| Status | Active |
|---|---|
| CCS | G44 | ICS | 83.100 |
| Release Date | 2003-01-10 00:00:00 | Implementation Date | 2003-07-01 00:00:00 |