Jiangsu oresen Inspection and Testing Service Co., Ltd. was accredited by CNAS in May 2019 and passed the annual review in April 2023. The following is the pre-announced testing capabilities. In addition to the capabilities accredited by CNAS, the engine laboratory can also conduct SCR single-point conversion efficiency tests, carbon loading tests, and insertion loss tests, etc.

No.	Test Object	Item/Parameter No.	Item/Parameter Name	Test Standard (Method)	Description	Recommended	Status
2	Diesel engine for non-road mobile machinery	1	NRTC Cycle Test	Limits and measurement methods for exhaust pollutants from diesel engines for non-road mobile machinery (China Stage III, IV) GB20891-2014 5.2.3 Appendix B Limits and measurement methods for exhaust pollutants from diesel engines for non-road mobile machinery EU Directive "On the harmonization of measures taken by Member States to prevent gaseous and particulate pollutant emissions from engines for non-road mobile machinery" EU 2016/1628 ANNEX II Annex 4	Only for: Compression ignition engines with power ≤ 700kW	Yes	New
2	Diesel engine for non-road mobile machinery	1	NRTC Cycle Test	Limits and measurement methods for exhaust pollutants from diesel engines for non-road mobile machinery (China Stage III, IV) GB20891-2014 5.2.3 Appendix B	Only for: Compression ignition engines with power ≤ 700kW	Yes	New
2	Diesel engine for non-road mobile machinery	2	NRSC Cycle Test	Limits and measurement methods for exhaust pollutants from diesel engines for non-road mobile machinery (China Stage III, IV) GB20891-2014 5.2.3 Appendix B Limits and measurement methods for exhaust pollutants from diesel engines for non-road mobile machinery EU Directive "On the harmonization of measures taken by Member States to prevent gaseous and particulate pollutant emissions from engines for non-road mobile machinery" EU 2016/1628 ANNEX II Annex 4	Only for: Compression ignition engines with power ≤ 700kW	Yes	New
3	Automotive exhaust muffler assembly	6	Exhaust back pressure test	Technical conditions and test methods for automotive exhaust muffler assembly QC/T 631-2009 5.5.4		Yes	Modified
4	Motor vehicle	1	Vehicle on-board measurement (PEMS) test	On-board measurement method and technical requirements for exhaust pollutants from heavy-duty diesel vehicles and gas-fueled vehicles HJ857-2017		Yes	Modified
4	Motor vehicle	1	Vehicle on-board measurement (PEMS) test	Limits and measurement methods for pollutants from heavy-duty diesel vehicles (China Stage VI) GB 17691-2018 6.4.2 Appendix K		Yes	New
	Automotive engine	1	Power test	Test method for net power of automotive engines GB/T 17692-1999	Only for engines with power ≤ 700kW	Yes	Modified
	Automotive engine	2	Load characteristic test	Test method for performance of automotive engines GB/T18297-2001 8.3	Only for engines with power ≤ 700kW	Yes	New
	Automotive engine	3	Universal characteristic test	Test method for performance of automotive engines GB/T18297-2001 8.4	Only for engines with power ≤ 700kW	Yes	New
	Automotive engine	4	Compression ignition engine speed governing characteristic test	Test method for performance of automotive engines GB/T18297-2001 8.6	Only for engines with power ≤ 700kW	Yes	New
	Automotive engine	5	Mechanical loss power test	Test method for performance of automotive engines GB/T18297-2001 8.7	Only for engines with power ≤ 700kW	Yes	New
	Automotive engine	6	Cylinder-to-cylinder uniformity test	Test method for performance of automotive engines GB/T18297-2001 8.8	Only for engines with power ≤ 700kW	Yes	New
	Automotive engine	7	Oil consumption test	Test method for performance of automotive engines GB/T18297-2001 8.9	Only for engines with power ≤ 700kW	Yes	New
	Automotive engine	8	Durability test	Durability technical requirements for compression ignition and gas-fueled spark ignition engines for vehicles and automotive emission control systems HJ438-2008 Durability requirements and test methods for exhaust pollutant control systems of heavy-duty vehicles GB20890-2007	Only for: Compression ignition engines	Yes	New
	Automotive engine	9	ETC Cycle Test	Limits and test methods for exhaust pollutants from compression ignition and gas-fueled spark ignition engines for vehicles and automobiles (China Stage III, IV, V) GB 17691-2005 7.2, Appendix B Amendment to Limits and test methods for exhaust pollutants from compression ignition and gas-fueled spark ignition engines for vehicles and automobiles (China Stage III, IV, V) GB 17691-2005 IV, VI, VIII	Only for: Compression ignition engines, limited to specific commissioned tests	Yes	New
	Automotive engine	10	ESC Cycle Test	Limits and test methods for exhaust pollutants from compression ignition and gas-fueled spark ignition engines for vehicles and automobiles (China Stage III, IV, V) GB 17691-2005 7.2, Appendix B Amendment to Limits and test methods for exhaust pollutants from compression ignition and gas-fueled spark ignition engines for vehicles and automobiles (China Stage III, IV, V) GB 17691-2005 VIII	Only for: Compression ignition engines, limited to specific commissioned tests	Yes	New
1	Automotive engine	11	WNTE Cycle Test	UN ECE Regulation: Uniform provisions concerning the approval of vehicle engines with regard to the emission of gaseous and particulate pollutants ECE R 49-06 5.2 Appendix 4 Limits and test methods for exhaust pollutants from compression ignition and gas-fueled spark ignition engines for vehicles and automobiles (China Stage VI) GB 17691-2018 6.4.1 Appendix E	Only for: Compression ignition engines	Yes	New
1	Automotive engine	12	WHSC Cycle Test	UN ECE Regulation: Uniform provisions concerning the approval of vehicle engines with regard to the emission of gaseous and particulate pollutants ECE R 49-06 5.3 Appendix 4 Limits and test methods for exhaust pollutants from compression ignition and gas-fueled spark ignition engines for vehicles and automobiles (Bench test method) DB11/964-2013 4.4, Appendix A Limits and test methods for exhaust pollutants from compression ignition and gas-fueled spark ignition engines for vehicles and automobiles (China Stage VI) GB 17691-2018 6.3.1 Appendix C	Only for: Compression ignition engines	Yes	New
1	Automotive engine	13	WHTC Cycle Test	UN ECE Regulation: Uniform provisions concerning the approval of vehicle engines with regard to the emission of gaseous and particulate pollutants ECE R 49-06 5.3 Appendix 4 Limits and test methods for exhaust pollutants from compression ignition and gas-fueled spark ignition engines for vehicles and automobiles (China Stage VI) GB 17691-2018 6.3.1 Appendix C Limits and test methods for exhaust pollutants from compression ignition and gas-fueled spark ignition engines for vehicles and automobiles (Bench test method) DB11/964-2013 4.4, Appendix A Limits and measurement methods for exhaust pollutants from diesel engines for urban vehicles (WHTC test mode) HJ 689-2014	Only for: Compression ignition engines	Yes	New
1	Automotive engine	14	On-board diagnostic (OBD) system test	Technical requirements for on-board diagnostic (OBD) systems for compression ignition and gas-fueled spark ignition engines for vehicles and automobiles HJ437-2008 5, Appendix B Limits and test methods for exhaust pollutants from compression ignition and gas-fueled spark ignition engines for vehicles and automobiles (China Stage VI) GB 17691-2018 Appendix F	Only for: Compression ignition engines	Yes	New