Home / Standards / GB/T 39693.6-2020 GB/T 39693.6-2020 Active 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 Standard Type GBT ICS 83.140.99 CCS G47 Status 现行 Issue Date 2020-12-14 Implementation 2021-11-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A