Home / Standards / GB/T 39693.5-2025 GB/T 39693.5-2025 Active Rubber, vulcanized or thermoplastic—Determination of hardness—Part 5: Indentation hardness by IRHD pocket meter method 硫化橡胶或热塑性橡胶 硬度的测定 第5部分:用便携式橡胶国际硬度计法测定压入硬度 Standard Type GBT ICS 83.060 CCS G40 Status 现行 Issue Date 2025-08-29 Implementation 2026-03-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A