China 'GB/T 13877.4-2003
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 13877.4-2003
Tractorsand self-propelled machines for agriculture and forestry--Operator enclosure environment--Part 4: Air filter element test method 农林拖拉机和自走式机械封闭驾驶室 第4部分: 空气滤清器试验方法
Issued Date:2003-03-11
Implemented Date:2003-08-01
Issued by:
The Standardization Administration of the People's Republic of China