Home / Standards / GB/T 42351.1-2023 GB/T 42351.1-2023 Active Preparation of particulate reference materials—Part 1: Polydisperse material based on picket fence of monodisperse spherical particles 颗粒标准样品的制备 第1部分：基于单分散球形颗粒尖桩栅栏分布的多分散标准样品 Standard Type GBT ICS 19.120 CCS A28 Status 现行 Issue Date 2023-03-17 Implementation 2023-07-01 Responsible Dept 国家标准委 Drafting Unit N/A