Home / Standards / GB/T 22923-2008 GB/T 22923-2008 Active Determination of nitrogen phosphorus potassium for fertilizers by auto analyzer 肥料中氮、磷、钾的自动分析仪测定法 Standard Type GBT ICS 65.080 CCS G20 Status 现行 Issue Date 2008-12-31 Implementation 2009-08-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A