The standard specifies the limits and measurement methods for the exhaust pollutant from diesel engines of non-road mobile machinery (including marine diesel engines with a rated net power not exceeding 37kW) and the secondary diesel engines installed on road vehicles for carrying people (cargo).
This Standard is applicable to type approval and production conformity inspection of the diesel engines installed for the following (including but not limited to) non-road mobile machinery, with rated net power not exceeding 560kW and operating at non-permanent speed, e.g.:
- Industrial drilling equipment;
- Engineering machinery (including loader, bulldozer, road roller, asphalt paver, truck for non-highway, excavator, etc.);
- Agricultural machinery (including large tractor, combine-harvester, etc.);
- Forestry machinery;
- Material handling machinery;
- Snowplough equipment;
- Airport ground servicing equipment.
This Standard is applicable to type approval and production conformity inspection of the diesel engines installed for the following (including but not limited to) non-road mobile machinery, with rated net power not exceeding 560kW and operating at non-permanent speed, e.g.:
- Air compressor;
- Generator unit;
- Fishery machinery (automatic aerator, pond excavator, etc.);
- Water pump.
2 Normative References
This Standard refers to the provisions of the following documents or therein. For undated references, the effective versions are applicable to this Standard.
GB 252 "General Diesel Fuels"
GB/T 6072 "Reciprocating Internal Combustion Engines, Performance"
GB/T 6379.2-2004 "Accuracy (Trueness and Precision) of Measurement Methods and Results Part 2: Basic Method for the Determination of Repeatability and Reproducibility of a Standard Measurement Method"
GB 17691-2005 “Limits and Measurement Methods for Exhaust Pollutants from Compression Ignition and Gas Fuelled Positive Ignition Engines of Vehicles (CHINA III IV V)”
GB/T 17692-1999 "Measurement Methods of Net Power for Automotive Engines"
HJ 509-2009 “Determination of Platinum, Palladium and Rhodium Loading in the Vehicle-used Ceramic Catalytic Converters - Inductive Coupled Plasma-Optical Emission Spectrometry and Inductive Coupled Plasma-mass Spectrometry”
3 Terms and Definitions
3.1 Non-road mobile machinery
Various machinery used for non-road and mentioned in "scope", i.e.:
(1) Self-driven or double function: machinery self-driven and operating other functions;
(2) Machinery which fails to be self-driven, but is designed to be capable of moving or being moved from one place to another place.
3.2 Secondary engine
Diesel engine which is mounted for road vehicle, does not provide driving force for vehicle but provides power for vehicle-mounted special facilities.
3.3 Test cycle
The procedures that diesel engine is tested at stated speed and torque under steady-state condition or instantaneous condition (NRTC test).
3.4 Non-road transient cycle
Test cycle including 1238 conditions changing second by second as specified in Attachment BE of this Standard.
3.5 Reference speed
Actual speed value corresponding to 100% point relative speed in NRTC test as described in Attachment BB of Standard GB 17691-2005.
3.6 Diesel engine type-approval
Approve a diesel engine type with respect to emission level of exhaust pollutants from diesel engine.
3.7 Diesel engine type
