Home / Standards / GB/T 39540-2020 GB/T 39540-2020 Active Fast determination of shale gas composition—Laser Raman spectroscopy 页岩气组分快速分析 激光拉曼光谱法 Standard Type GBT ICS 75.060 CCS E 24 Status 现行 Issue Date 2020-11-19 Implementation 2021-06-01 Responsible Dept 国家标准委 Drafting Unit N/A