GB 14622-2016 PDF English
US$1755.00 · In stock · Download in 9 secondsGB 14622-2016: Limits and measurement methods for the emissions of pollutants from motorcycles on the running mode (CHINA stage IV) Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedureStatus: Valid GB 14622: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB 14622-2016 | English | 1755 |
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Limits and measurement methods for the emissions of pollutants from motorcycles on the running mode (CHINA stage IV)
| Valid |
| GB 14622-2007 | English | RFQ |
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Limits and measurement methods for the emissions of pollutants from motorcycles on the running mode (CHINA stage Ⅲ)
| Obsolete |
| GB 14622-2002 | English | 799 |
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Limits and measurement methods for exhaust emissions from motorcycles under running mode
| Obsolete |
| GB 14622-2000 | English | 959 |
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Limits and measurement methods for emissions of pollutants from motorcycles
| Obsolete |
| GB/T 14622-1993 | English | 719 |
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Measuring method for exhaust emissions from motorcycle under running mode
| Obsolete |
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GB 14622-2016: Limits and measurement methods for the emissions of pollutants from motorcycles on the running mode (CHINA stage IV)
---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GB14622-2016
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 13.040.50
Z 64
Replacing GB 14622-2007 and GB 20998-2007
Partially replacing GB 14621-2011
Limits and Measurement Methods for Emissions from Motorcycles
(CHINA IV)
Issued on. AUGUST 22, 2016
Implemented on. JULY 1, 2018
Issued by. Ministry of Ecology and Environment of the People’s Republic of China;
General Administration of Quality Supervision, Inspection and Quarantine of
the People’s Republic of China.
Announcement of the Ministry of Environmental Protection
of the People's Republic of China
2016, No. 56
With a view to implementing Environmental Protection Law of the People's Republic of China,
Law of the People's Republic of China on Prevention and Control of Water Pollution and Law of
the People's Republic of China on Prevention and Control of Atmospheric Pollution, preventing
and controlling pollution, protecting and improving ecological environment, safeguarding human
health, five standards, including Limits and Measurement Methods for Exhaust Pollutants from
Marine Engines (CHINA I, II) have been approved as national pollutant emission standards and
jointly issued by the Ministry of Environmental Protection and the General Administration of
Quality Supervision, Inspection and Quarantine of the People's Republic of China.
The names and serial numbers of these standards are as follows.
Table of Contents
Foreword... 5
1 Application Scope... 7
2 Normative References... 7
3 Terms and Definitions... 8
4 Type Test and Test Information Disclosure... 13
5 General Requirements... 13
6 Type Test Requirements... 15
7 Production Conformity Inspection... 21
8 Motorcycle Type Extension... 26
9 In-service Compliance... 26
10 Standard Implementation... 26
Annex A (Normative) Relevant Information of Type Test... 27
Annex B (Normative) Type Test Result... 39
Annex C (Normative) Emission Test for Tailpipe Emissions after Cold Start at Normal
Temperature (Type I test)... 42
Annex D (Normative) Test at Double Idling Speed or Test of Smoke Intensity at Free
Acceleration (Type II Test)... 155
Annex E (Normative) Emission Test for Evaporative Emissions (Type IV Test)... 169
Annex F (Normative) Endurance Test of Emission-control Device (Type V Test)... 190
Annex G (Normative) On-board Diagnostic (OBD) System... 198
Annex H (Normative) Technical Requirements for Reference Fuels... 204
Annex I (Normative) Production Conformity Assurance Requirements... 210
Annex J (Normative) Type Extension Requirements... 216
1 Application Scope
This standard specifies the limits and measurement methods for tailpipe emissions and
evaporative emissions of the motorcycle with spark-ignition engine, as well as the emission
requirements for crankcase, endurance requirements for emission-control devices and technical
requirements for on-board diagnostic (OBD) system.
This standard specifies the limits and measurement methods for tailpipe emissions of the three-
wheeled motorcycle with compression-ignition engine, as well as the endurance requirements for
emission-control devices and technical requirements for on-board diagnostic (OBD) system.
This standard specifies the type test requirements, production conformity inspection, and
judgment methods for motorcycles.
This standard is applicable to the motorcycles driven by spark-ignition engine, with maximum
design speed greater than 50km/h or displacement greater than 50ml; and the three-wheeled
motorcycles driven by compression-ignition engine, with maximum design speed greater than
50km/h or displacement greater than 50ml.
2 Normative References
The following normative documents contain provisions which, through reference in this text,
constitute provisions of this standard. For undated references, the latest edition of the referenced
document applies
GB/T 15089-2001 Classification of Power - Driven Vehicles and Trailers
HJ/T 289 Equipment Specifications and Quality Control Requirements for
Gasoline Vehicles in Two-Speed Idle Exhaust Emission Test
QC/T 1003 Determination of Precious Metal in Metal Support Catalytic Converter
for Motorcycles
ISO 2575.2010 Road Vehicles - Symbols For Controls, Indicators and Tell-tales
ISO 9141-2 Road Vehicles - Diagnostic Systems - Part 2.CARB Requirements for
Interchange of Digital Information
ISO 14229-3 Road Vehicles - Unified Diagnostic Services (UDS) - Part 3.Unified
Diagnostic Services on CAN Implementation (UDSonCAN)
ISO 14229-4 Road Vehicles - Unified Diagnostic Services (UDS) - Part 4.Unified
Diagnostic Services on FlexRay Implementation (UDSonFR)
ISO 14230-4 Road Vehicles - Diagnostic Systems - Keyword Protocol 2000 - Part 4.
Requirements for Emission-related Systems
ISO 15031-3 Road Vehicles - Communication between Vehicle and External
Equipment for Emissions-related Diagnostics - Part 3.Diagnostic
Connector and Related Electrical Circuits, Specification and Use
ISO 15031-4.2014 Road Vehicles - Communication between Vehicle and External
Equipment for Emissions-related Diagnostics - Part 4.External Test
Equipment
3 Terms and Definitions
For the purposes of this standard, the following terms and definitions apply.
3.1 motorcycle
According to GB/T 15089-2001.
Two-wheeled motorcycle (Type L3). if equipped with heat engine, its cylinder displacement shall
exceed 50ml; or whichever driving mode is adopted, the maximum design speed shall exceed
50km/h.
3.2 type test
the type approval test for new trial-manufactured product after completion of motorcycle type
design, so as to verify whether the product meets the technical requirements of this standard
3.3 gas fuel
liquefied petroleum gas (LPG) or natural gas (NG)
3.4 bi-fuel motorcycle
the motorcycles that can use either gasoline or a kind of gas as fuel. However, it cannot use them
at the same time
3.5 mono fuel gas motorcycle
the motorcycles that can only use one kind of gas fuel (LPG or NG), or can use either gasoline
or gas fuel (LPG or NG) but gasoline can only be used for an emergency or the start of engine
3.6 equivalent inertia
the mass equivalent to the moving and rotational inertia of the motorcycle in motion which is
simulated by an inertia simulator on the chassis dynamometer
4 Type Test and Test Information Disclosure
4.1 Type test is conducted according to this standard, and is in accordance with the
requirements of this standard.
4.2 The motorcycle manufacturer or its authorized agent shall disclose information according
to Annexes A and B; the confidential information of the manufacturer, if involved, may be only
disclosed to the competent department.
4.3 An representative sample motorcycle must be submitted to the testing organization
responsible for type test so as to conduct the test specified in Chapter 6.Two same canisters shall
be provided during Type IV test, while two same catalytic converters shall be provided during
Type V test.
5 General Requirements
5.1 The parts and components having an impact on tailpipe emissions, crankcase emissions and
evaporative emissions shall be such designed, manufactured and assembled as to enable the
motorcycle under normal service condition, to comply with the requirements of this standard
despite the vibration to which it may be subject.
5.2 Technical measures must be taken by the motorcycle manufacturer to ensure that the
motorcycle meets the requirements of Chapters 6 and 7.Thus, it is regarded as able to effectively
control its tailpipe emissions and evaporative emissions within the limits specified in this
standard under normal service condition and within service life.
5.3 Any of the following measures must be taken by the motorcycle manufacturer so as to avoid
excess evaporative emissions and fuel overflow due to loss of fuel storage tank cap.
5.4 All motorcycles shall be equipped with OBD systems that shall be such designed,
manufactured and installed as to identify and record the malfunction types of motorcycles
throughout the service life. Without type test, any change in the technical measures taken by the
manufacturer and the OBD system equipped on motorcycle, which may affect the emissions of
motorcycle, cannot be made.
5.5 The safety of electronic control system shall meet the following requirements.
5.6 It is forbidden to adopt defeat device and (or) irrational emission control strategy for
motorcycle.
5.7 Relevant engine control device, function, system or measures may be installed on or
adopted for motorcycle in case that any of the following conditions is met.
5.8 If the engine control device, function, system or measures adopted by motorcycle can make
different control strategy from that in normal service emission test cycle or the adjusted engine
control strategy be adopted for the engine; such measures, where fully proved not to reduce the
efficiency of emission control system, may be taken. It is considered as a defeat device in all
other cases.
6 Type Test Requirements
6.1 Test items
See Table 1 for test items of motorcycle during type test.
6.2 Emission limit requirements and test methods
6.2.1 Type I test (the test for tailpipe emissions after cold start at normal temperature)
6.2.1.1 All motorcycles shall be subject to this test.
6.2.1.2 As for bi-fuel motorcycle, two fuels shall be respectively used to conduct Type I test.
6.2.1.3 Type I test shall be conducted according to the method specified in Annex C. Various
tailpipe emissions are collected and analyzed with the specified methods.
6.2.1.4 See Figure 1 for flow chart of Type I test.
6.2.1.5 The motorcycle shall be placed on the chassis dynamometer equipped with power
absorption unit and inertia simulation device.
6.2.1.8 Despite those specified in 6.2.1.7, as for the aforesaid pollutants, if the arithmetic
average of three measurement results is lower than the specified limit, one of these results is
allowed to exceed the corresponding specified limit, but shall not exceed 1.1 times of the
specified limit. The case that more than one pollutant exceeds the specified limit is allowed either
in the same test or in different ones.
6.2.1.9 Under the following conditions, the test times specified in 6.2.1.7 may be reduced. As
for the pollutants mentioned in 6.2.1.7, V1 and V2 represent the first and the second measurement
result respectively and L is the limit of each pollutant specified in Table 2, 6.2.1.
6.2.2 Type II test (test at double idling speed or test of smoke intensity at free acceleration)
6.2.2.1 Test at double idling speed
6.2.2.2 Test of smoke intensity at free acceleration
6.2.3 Type III test (test for crankcase emissions)
Any crankcase emission shall not be exhausted into atmosphere. Where necessary, the
manufacturer shall disclose detailed technical information and drawings to the competent
department so as to prove that the engine structure will not exhaust any fuel, lubricating oil or
crankcase gas into atmosphere from crankcase ventilation system.
6.2.4 Type IV test (test for evaporative emissions)
6.2.4.1 All motorcycles with spark-ignition engine, except mono fuel gas motorcycles, shall be
subject to this test. As for bi-fuel motorcycle, only gasoline is used to conduct this test.
6.2.5 Type V test (endurance test for emission-control devices)
6.3 Test fuel
Reference fuels specified in Annex H shall be adopted for all tests (except Type V test), while
the commercially available vehicle fuel complying with relevant standard shall be adopted for
Type V test.
7 Production Conformity Inspection
Measures shall be taken according to Annex I to ensure the production conformity. The
production conformity shall be inspected based on Annexes A and B, where necessary, all or
some tests specified in Chapter 6 may be conducted.
7.1 Production conformity inspection during Type I test
7.1.1 During Type I test, if the motorcycle passing type test has one or more extension(s), this
test may be conducted for the motorcycle type or relevant extended motorcycle type specified in
Annex A.
7.1.2 The motorcycle, after being selected by the competent department, shall not be changed
in any way by the manufacturer.
7.1.2.1 Three motorcycles of certain type are randomly selected for Type I test according to the
requirements of Annex C. The deterioration factor actually measured during type test shall be
adopted. See Table 2 in 6.2.1 for limits.
7.1.3 Sample motorcycles are taken directly from the motorcycles passing the off-production-
line inspection to conduct the test, and running-in is not required for test motorcycles.
7.1.4 Commercially available vehicle fuel complying with the requirements of relevant
standard shall be adopted for test. Where required by the manufacturer, reference fuels specified
in Annex H may be adopted.
7.2 Production conformity inspection for Type II test
7.2.1 Production conformity inspection for test of motorcycle with spark-ignition engine at
double idling speed
7.2.1.1 The manufacturer shall conduct random inspection for motorcycles passing off-
production-line inspection through test at double idling speed.
7.2.1.2 The CO and HC emission values at double idling speed and the λ value at high idling
speed of the motorcycle shall meet the requirements of 6.2.2.1.4.
7.2.2 Production conformity inspection for smoke intensity at free acceleration of three-
wheeled motorcycle with compression-ignition engine
7.2.2.1 The manufacturer shall conduct random inspection for motorcycles passing off-
production-line inspection through test of smoke intensity at free acceleration.
7.5 Production conformity inspection for OBD system
7.5.1 Three motorcycles are randomly taken from batch products to conduct tests specified in
Annex G.
7.5.2 If the three motorcycles meet the test requirements specified in Annex G, it is regarded
that the production conformity of OBD system meets relevant requirements, otherwise it will be
regarded as rejected.
7.6 Production conformity inspection for canister
7.6.1 Three motorcycles (or three canisters) are randomly taken from the assembling line or
batch products to test the initial working capacity of canister according to the requirements of
Attachment EB.
7.6.2 Judgment criteria for canister production conformity.
7.7 Production conformity inspection for catalytic converter
7.8 Others
In case that a certain motorcycle type fails to meet any of the production conformity inspection
requirements specified in 7.1~7.7, the motorcycle manufacturer shall take all the necessary
measures as soon as possible to reestablish the production conformity assurance system.
8 Motorcycle Type Extension
Motorcycle type extension shall meet the requirements of Annex J. Where certain motorcycle
type is extended, this type may not be extended to other motorcycle types.
9 In-service Compliance
The manufacturer shall take measures to ensure that the emission-control devices equipped on
motorcycles, within the endurance mileage specified in this standard and under normal service
conditions, shall always under normal operation and comply with relevant pollutant emission
limits.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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