ChinaAutoRegs｜GB 20891-2014 英文版/English/翻译/非道路移动机械用柴油机排气污染物排放限值及测量方法(中国第三、四阶段)
Limits and Measurement Methods for Exhaust Pollutants From Diesel Engines of Non-Road Mobile Machinery (CHINA III, IV)
1 SCOPE
The standard specifies limits and measurement methods for exhaust pollutants from diesel engines (including marine diesel engine with rated net power of no more than 37KW) of non-road mobile machinery and secondary engines to be installed in vehicles to be moved on the ground for carrying goods and/or passengers.
The standard is applicable to the type approval, production conformity assessment and durability requirements of diesel engines operated under intermittent speed, and to be installed in the following non-road mobile machinery, including but not limited to:
— Industrial drilling rigs;
— Construction machinery including wheel loaders, bulldozers, road rollers, pitch pavers, off-highway trucks, excavators and fork truck etc;
— Agricultural machinery including large tractors and combine harvesters, etc;
— Forestry machinery;
— Material handling machinery;
— Snow-plough machinery;
— Ground support equipment in airports.
The standard is applicable to the type approval, production conformity assessment and durability requirements of diesel engines operated under constant speed, and to be installed in the following non-road mobile machinery, including but not limited to:
— Air compressors;
— Generator set;
— Fishery machinery including aerators and pond excavators, etc;
— Water pump.
2 NORMATIVE REFERENCES
The following normative documents or contain provision which, through reference in this text, constitute provisions of this national standard. For all undated references, the valid edition of the normative document referred to applies.
GB 252 General Diesel Fuel
GB/T 6072 Reciprocating internal combustion engines – Performance
GB/T6379.2-2004 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 (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
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