Home / Standards / GB/T 44790-2024 GB/T 44790-2024 Active Nanotechnologies—Detection method for solid phase extraction performance of polystyrene nanofibers 纳米技术 聚苯乙烯纳米纤维固相萃取性能检测方法 Standard Type GBT ICS 07.120 CCS G30 Status 现行 Issue Date 2024-10-26 Implementation 2025-05-01 Responsible Dept 中国科学院 Drafting Unit N/A