Home / Standards / GB/T 40315-2021 GB/T 40315-2021 Active Plastics—Small enclosures for conditioning and testing using aqueous solutions to maintain the humidity at a constant value 塑料 采用水溶液保持湿度恒定进行状态调节和试验的小密闭容器 Standard Type GBT ICS 83.200 CCS G31 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