Home / Standards / GB 20891-2014 GB 20891-2014 Active Limits and measurement methods for exhaust pollutants from diesel engines of non-road mobile machinery(CHINA Ⅲ、Ⅳ) 非道路移动机械用柴油机排气污染物排放限值及测量方法(中国第三、四阶段) Standard Type GB ICS 13.040.40 CCS Z64 Status 现行 Issue Date 2014-05-16 Implementation 2014-10-01 Responsible Dept 生态环境部 Drafting Unit N/A