Home / Standards / GB/T 46434-2025 GB/T 46434-2025 Active Determination of purity and trace organic impurities of methanol—Gas chromatography 甲醇纯度及其微量有机杂质的测定 气相色谱法 Standard Type GBT ICS 71.080.60 CCS G16 Status 现行 Issue Date 2025-10-31 Implementation 2026-05-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A