Home / Standards / GB/T 19203-2003 GB/T 19203-2003 Active Determination of calcium，magnesium andsulphur content for compound fertilizer 复混肥料中钙、镁、硫含量的测定 Standard Type GBT ICS 65.080 CCS G20 Status 现行 Issue Date 2003-06-23 Implementation 2003-12-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A