Home / Standards / GB/T 42348-2023 GB/T 42348-2023 Active Particle size analysis—Particle tracking analysis (PTA) method 粒度分析 颗粒跟踪分析法(PTA) Standard Type GBT ICS 19.120 CCS A28 Status 现行 Issue Date 2023-03-17 Implementation 2023-10-01 Responsible Dept 国家标准委 Drafting Unit N/A