Home / Standards / GB/T 21509-2008 GB/T 21509-2008 Active Denitration equipment of coal-fired flue gas 燃煤烟气脱硝技术装备 Standard Type GBT ICS 13.030.40 CCS J88 Status 现行 Issue Date 2008-03-12 Implementation 2008-09-01 Responsible Dept 中国机械工业联合会 Drafting Unit 中国机械工业联合会