Home / Standards / GB/Z 43998-2024 GB/Z 43998-2024 Active Nanotechnologies—Assessment of the concentrations of carbon black and amorphous silica in nanoscale in a mixed dust manufacturing environment 纳米技术 混合粉尘制造环境空气中纳米级炭黑和无定形二氧化硅浓度的测量方法 Standard Type GBZ ICS 07.120 CCS L04 Status 现行 Issue Date 2024-04-25 Implementation N/A Responsible Dept 中国科学院 Drafting Unit N/A