Home / Standards / GB/T 22459.5-2022 GB/T 22459.5-2022 Active Refractory mortars—Part 5: Determination of grain size distribution ( sieve analysis ) 耐火泥浆 第5部分:粒度分布(筛分析)试验方法 Standard Type GBT ICS 81.080 CCS Q46 Status 现行 Issue Date 2022-03-09 Implementation 2022-10-01 Responsible Dept 国家标准委 Drafting Unit N/A