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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 39693.3-2021 |
Rubber, vulcanized or thermoplastic—Determination of hardness—Part 3:Dead-load hardness using the very low rubber hardness (VLRH) scale 硫化橡胶或热塑性橡胶 硬度的测定 第3部分：用超低橡胶硬度（VLRH）标尺 测定定试验力硬度 |
China National Standards hardness—Part |
 English PDF |
| GB/T 39693.9-2021 |
Rubber, vulcanized or thermoplastic—Determination of hardness—Part 9:Calibration and verification of hardness testers 硫化橡胶或热塑性橡胶 硬度的测定 第9部分：硬度计的校准和验证 |
China National Standards hardness—Part |
English PDF |
| GB/T 39693.6-2020 |
Rubber, vulcanized or thermoplastic—Determination of hardness—Part 6: Apparent hardness of rubber-covered rollers by IRHD method 硫化橡胶或热塑性橡胶 硬度的测定 第6部分：IRHD法测定胶辊的表观硬度 |
China National Standards hardness—Part |
English PDF |
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