Home / Standards / GB/T 6462-2025 GB/T 6462-2025 Active Metallic and oxide coatings—Measurement of coating thickness—Microscopical method 金属和氧化物覆盖层 厚度测量 显微镜法 Standard Type GBT ICS 25.220.20;25.220.40 CCS A29 Status 现行 Issue Date 2025-10-31 Implementation 2026-05-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A