Home / Standards / GB/T 6288-2021 GB/T 6288-2021 Active Determination of particle size for granular molecular sieve 粒状分子筛粒度测定方法 Standard Type GBT ICS 71.100.99 CCS G85 Status 现行 Issue Date 2021-08-20 Implementation 2022-03-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A