Home / Standards / GB/T 19500-2025 GB/T 19500-2025 Active Surface chemical analysis—General rules for X-ray photoelectron spectroscopic analysis method 表面化学分析 X射线光电子能谱分析方法通则 Standard Type GBT ICS 71.040.40 CCS G 04 Status 现行 Issue Date 2025-06-30 Implementation 2026-01-01 Responsible Dept 中国科学院 Drafting Unit N/A