Standard No.:	HJ 689-2014
English Name:	Limits and Measurement Methods for Exhaust Pollutants from Diesel Engines of Urban Vehicles (WHTC)
Chinese Name:	城市车辆用柴油发动机排气污染物排放限值及测量方法（WHTC工况法）
Professional Classification:	HJ    Professional Standard - Environment
Source Content Issued by:	ZHB
Issued on:	2014-1-16
Implemented on:	2015-1-1
Status:	valid
Target Language:	English
File Format:	PDF
Word Count:	10000 words
Translation Price(USD):	250.0
Delivery:	via email in 1 business day

1 Application Scope This standard specifies the limits and measurement methods for exhaust pollutants from diesel engines of urban vehicles (WHTC). This standard is applicable to the type approval, production conformity inspection and in-service conformity inspection of urban vehicles with the total mass greater than 3,500 kg and their diesel engines. 2 Normative References This standard makes reference to the following documents and the provisions in them, for undated references, the latest editions are applicable to this standard. GB 17691-2005 Limits and Measurement Methods for Exhaust Pollutants from Compression Ignition and Gas Fuelled Positive Ignition Engines of Vehicles (III IV V) HJ 437-2008 Technical Specification for On-board Diagnostic (OBD) System of Compression Ignition and Gas Fuelled Positive Ignition Engines of Vehicles HJ 438-2008 Durability of Emission Control Systems of Compression Ignition and Gas Fuelled Positive Ignition Engines of Vehicles HJ 439-2008 In-service Conformity of Compression Ignition and Gas Fuelled Positive Ignition Engines of Vehicles The modification plan of [2008 No.24] Announcement of the Ministry of Environmental Protection "Limits and Measurement Methods for Exhaust Pollutants from Compression Ignition and Gas Fuelled Positive Ignition Engines of Vehicles (III IV V)" (GB 17691-2005), hereinafter referred to as "Modification Plan". 3 Terminologies and Definitions For the purpose of this standard, the following terminologies and definitions and those established in GB 17691-2005 apply. 3.1 WHTC test (World Harmonized Transient Cycle test) It refers to the transient cycle including 1,800 working conditions transforming second by second in the Appendix A of this standard. 3.2 Urban vehicles It refers to the buses, mail cars and sanitation trucks operating in the city. 4 Type Approval and Application

Foreword I 1 Application Scope 1 2 Normative References 1 3 Terminologies and Definitions 1 4 Type Approval and Application 2 5 Technical Requirements and Tests 2 6 Marking of Engine 3 7 Production Conformity 3 8 Engine Family 4 9 Implementation of Standard 4 Appendix A (Normative) WHTC Test Specification 5 Attachment AA (Normative) Regulation for Setting of Engine Dynamometer in WHTC Test Cycle 15 Appendix B (Normative) Type Approval Certificate 30 Attachment BA (Normative) Attachment of Type Approval Certificate 31