Home / Standards / GB/T 6730.90-2025 GB/T 6730.90-2025 Active Iron ores—Determination of gold, silver, platinum, palladium contents—Inductively coupled plasma mass spectrometry method 铁矿石 金、银、铂、钯含量的测定 电感耦合等离子体质谱法 Standard Type GBT ICS 73.060.10 CCS D31 Status 现行 Issue Date 2025-04-25 Implementation 2025-11-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A