Home / Standards / GB 20890-2007 GB 20890-2007 Active Test procedures and requirement of durability of emission control systems for heavy-duty vehicles 重型汽车排气污染物排放控制系统耐久性要求及试验方法 Standard Type GB ICS 13.040.50 CCS Z64 Status 现行 Issue Date 2007-04-03 Implementation 2007-10-01 Responsible Dept 生态环境部 Drafting Unit 生态环境部