Home / Standards / GB/T 44538-2024 GB/T 44538-2024 Active Carbon based films—Determination of optical properties of amorphous carbon films by spectfoscopic ellipsometry 碳基薄膜 椭偏光谱法测定非晶态碳基薄膜的光学性能 Standard Type GBT ICS 25.220.99 CCS A29 Status 现行 Issue Date 2024-09-29 Implementation 2025-04-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A