Home / Standards / GB/T 46742-2025 GB/T 46742-2025 Active Simultaneous determination of N-(n-Buthyl)thiophosphoric triamide and dicyandiamide in fertilizers—High performance liquid chromatography method 肥料中正丁基硫代磷酰三胺和双氰胺的同时测定 高效液相色谱法 Standard Type GBT ICS 65.080 CCS G20 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