Home / Standards / GB/T 39693.9-2021 GB/T 39693.9-2021 Active 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 Standard Type GBT ICS 83.060 CCS G40 Status 现行 Issue Date 2021-10-11 Implementation 2022-05-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A