Home / Standards / GB/T 19789-2021 GB/T 19789-2021 Active Packaging material—Test method for oxygen gas permeability characteristics of plastic film and sheeting—Coulometric sensor 包装材料 塑料薄膜和薄片氧气透过性试验 库仑计检测法 Standard Type GBT ICS 55.040 CCS A83 Status 现行 Issue Date 2021-10-11 Implementation 2022-05-01 Responsible Dept 国家标准委 Drafting Unit N/A