Home / Standards / GB/T 33057-2022 GB/T 33057-2022 Active Methods for sampling and sample preparation of waste chemicals 废弃化学品取样制样方法 Standard Type GBT ICS 13.030.01 CCS Z04 Status 现行 Issue Date 2022-12-30 Implementation 2023-07-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A