Standard No.:	HJ 438-2008
English Name:	Durability of Emission Control Systems of Compression Ignition and Gas Fuelled Positive Ignition Engines of Vehicles
Chinese Name:	车用压燃式、气体燃料点燃式发动机与汽车排放控制系统耐久性技术要求
Chinese Classification:	T10    Automotive engines in general
Professional Classification:	HJ    Professional Standard - Environment
ICS Classification:	43.060.01 43.060.01    Internal combustion engines for road vehicles in general 43.060.01
Issued by:	Ministry of Environmental Protection
Issued on:	June 24, 2008
Implemented on:	2008-7-1
Status:	valid
Language:	English
File Format:	PDF
Word Count:	4000 words
Price(USD):	80.0
Delivery:	via email in 1 business day

This standard specifies the durability requirements (including measurement methods) for vehicle adopted with compression ignition engine and that adopted with the spark ignition engine fuelled with natural gas (NG) or liquefied petroleum gas (LPG) as well as emission control system of such engines. This standard is applicable to the type approval of the emission control system of compression ignition (including gas fuelled positive ignition) engines equipped in M2, M3, N1, N2 and N3 vehicles with design speed greater than 25 km/h as well as M1 vehicles with total mass greater than 3,500kg. Where N1 and M2 vehicles adopted with compression ignition (including gas fuelled positive ignition) engines meet the durability requirements of "Limits and Measurement Methods for Emissions from Light-duty Vehicles" (GB 18352.3-5), this standard may not be implemented.

Foreword I 1 Application Scope 1 2 Normative References 1 3 Terms and Definitions 1 4 Type Approval Application 3 5 General Requirements 3 Appendix A (Normative) Durability Test Specifications for Emission Control System 5