Home / Standards / GB/T 24203-2024 GB/T 24203-2024 Active Method for determination of bulk density, true density, true porosity and oppen porosity of carbon materials 炭素材料体积密度、真密度、真气孔率、显气孔率的测定方法 Standard Type GBT ICS 29.050 CCS Q52 Status 现行 Issue Date 2024-09-29 Implementation 2025-04-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A