Home / Standards / GB 14621-2011 GB 14621-2011 Active Limits and measurement methods for exhaust pollutants from motorcycles and mopeds under two-speed idle conditions 摩托车和轻便摩托车排气污染物排放限值及测量方法（双怠速法） Standard Type GB ICS 13.040.50 CCS Z64 Status 现行 Issue Date 2011-06-16 Implementation 2011-10-01 Responsible Dept 生态环境部 Drafting Unit N/A