Home / Standards / GB/T 44027.2-2024 GB/T 44027.2-2024 Active Determination method of carbon material—Part 2: Determination of expansion ratio 炭材料测定方法 第2部分:膨胀率的测定 Standard Type GBT ICS 29.050 CCS Q52 Status 现行 Issue Date 2024-05-28 Implementation 2024-12-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A