Home / Standards / GB/T 15072.6-2025 GB/T 15072.6-2025 Active Methods for chemical analysis of precious metal alloys—Part 6: Determination of iridium content 贵金属合金化学分析方法 第6部分:铱含量的测定 Standard Type GBT ICS 77.120.99 CCS H15 Status 现行 Issue Date 2025-08-29 Implementation 2026-03-01 Responsible Dept 中国有色金属工业协会 Drafting Unit N/A