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GB 18352.5-2013 PDF English

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GB 18352.5-2013: Limits and measurement methods for emissions from light-duty vehicles (CHINA 5) (Replaced by GB 18352.6-2016, Valid through July 2025)
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GB 18352.5-2013: Limits and measurement methods for emissions from light-duty vehicles (CHINA 5) (Replaced by GB 18352.6-2016, Valid through July 2025)


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NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 13.040.50 Z 64 Replacing GB18352.3-2005 Limits and measurement methods for emissions from light-duty vehicles (CHINA 5) Issued on. SEPTEMBER 17, 2013 Implemented on. JANUARY 01, 2018 Issued by. Ministry of Environmental Protection of the PRC; General Administration of Quality Supervision, Inspection and Quarantine of the PRC.

Table of Contents

Foreword... 3 1 Scope of application... 7 2 Normative references... 8 3 Terms and definitions... 9 4 Type-approval application and approval... 15 5 Specifications and tests... 16 6 Extensions to type approvals... 27 7 Conformity of production... 31 8 In-service conformity... 36 9 Implementation of the standard... 37 Annex A (Normative) Information on application for type approval... 39 Annex B (Informative) Format of type-approval certificate (Maximum size. A4 (210 × 297 mm))... 58 Annex C (Normative) Test of exhaust emissions after a cold start at normal temperature (Type I test)... 65 Annex D (Normative) Two-speed idle test or free acceleration smoke test (Type II test)... 143 Annex E (Normative) Test of crankcase emissions (Type III test)... 147 Annex F (Normative) Test of evaporative emissions (Type IV test)... 150 Annex G (Normative) Durability test of pollution control devices (Type V test) ... 172 Annex H (Normative) Emission test of CO and THC in the exhaust after a cold start at low temperature (Type VI test)... 187 Annex I (Normative) Onboard diagnostic (OBD) system... 194 Annex J (Normative) Specifications of reference fuels... 220 Annex K (Normative) Special requirements for a vehicle fuelled by LPG or NG ... 226 Annex L (Normative) Type-approval of replacement pollution control device as separate technical unit... 229 Annex M (Normative) Requirements for ensuring conformity of production. 243 Annex N (Normative) In-service conformity... 250 Annex O (Normative) Technical requirements for vehicles that use a reagent for the exhaust after-treatment system... 269 Annex P (Normative) Emissions test procedure for a vehicle equipped with a periodically regenerating system... 274

1 Scope of application

This Standard specifies the limits and measurement methods for exhaust emissions at normal and low ambient temperature, exhaust emissions at two-speed idle condition, crankcase emissions, and evaporative emissions, and technical requirements and measurement methods for the durability of pollution control devices and onboard diagnostic (OBD) systems of light-duty vehicles equipped with positive-ignition engines. This Standard specifies the limits and measurement methods for exhaust emissions at normal ambient temperature and free acceleration smoke, and technical requirements and measurement methods for the durability of pollution control devices and OBD systems of light-duty vehicles equipped with compression-ignition engines. This Standard specifies the requirements for type-approval of light-duty vehicles, check and verification methods of conformity of production and in-service conformity. This Standard also specifies the special requirements for light-duty vehicles fueled by LPG or NG. This Standard also specifies the type-approval procedure for replacement pollution control devices as separate technical units intended to be fitted on light-duty vehicles with respect to pollutant emissions. This Standard also stipulates the technical requirements for vehicles that use a reagent for the exhaust after-treatment system and the procedure for emission test of vehicles equipped with periodically regenerating systems. This Standard applies to light-duty vehicles, including hybrid electric vehicles, powered by positive-ignition engines or compression-ignition engines, with the maximum design speed of being greater than or equal to 50 km/h. At the manufacturer's request, type approval may be performed for Category M1, M2, and N2 vehicles with the maximum mass exceeding 3500 kg and a reference mass not exceeding 2610 kg in accordance with this Standard; as for the vehicles type approval granted under this Standard may be extended from vehicles mentioned above to M1, M2, N1 and N2 vehicles with a reference mass not exceeding 2840 kg and which meet the conditions laid down in this Standard.

2 Normative references

The following documents or contained provisions which, through reference in this Standard, constitute provisions of this Standard. For all undated references, the valid edition applies to this Standard. GB 1495 Limits and measurement methods for noise emitted by accelerating motor vehicles GB 3847-2005 Limits and measurement methods for exhaust smoke from C.I.E. (Compression Ignition Engine) and vehicle equipped with C.I.E. GB 7258 Safety specifications for power-driven vehicles operating on roads GB/T15089-2001 Classification of power-driven vehicles and trailers 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 18285 Limits and measurement methods for exhaust pollutants from vehicles equipped ignition engine under two-speed idle conditions and simple driving mode conditions GB/T 19001-2008 Quality management systems - Requirements GB/T 19755 Measurement methods for emissions from light-duty hybrid electric vehicles HJ/T 390 Technical Requirement for Environmental Protection Product - Control System of Fuel Evaporative Pollutants from Vehicle WITH Petrol Engine HJ 509 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

For the purpose of this Standard, the following terms and definitions apply. 3.1 Light-duty vehicle The category M1, M2, and N1 vehicles with the maximum mass of not exceeding 3500 kg. 3.2 Vehicle of category M1, M2, N1 and N2 According to GB/T 15089-2001, Vehicle of category M1 refers to the passenger vehicle with no more than 9 seats, including the driver's seat. 3.3 Vehicle of category I The vehicle of category M1 with no more than 6 seats including the driver's seat and whose maximum mass of not exceeding 2500 kg. 3.4 Vehicle of category II All vehicles covered by this Standard except the vehicle of category I. 3.5 Vehicle type Type of motor vehicle. The same type shall not differ in the following respects.

4 Type-approval application and approval

4.1 Application for type-approval 4.1.1 Vehicle manufacturer engaged in manufacturing and selling vehicles shall apply for and obtain type-approval of vehicle emission control in China. The application for type-approval of a vehicle type with regard to exhaust emissions, crankcase emissions, evaporative emissions, durability of pollution control devices, as well as to its OBD system shall be submitted by the vehicle manufacturer. 4.1.2 Technical documents for type-approval shall be submitted in accordance with Annex A of this Standard. Documents of ensuring conformity of production shall be submitted in accordance with Annex M of this Standard. 4.1.2.1 The application concerning an onboard diagnostic (OBD) system the following information shall be attached. 4.1.3 Where appropriate, copies of other type approvals with the relevant data to enable extensions of approvals and establishment of deterioration factors shall be submitted. 4.1.4 For the tests described in Clause 5, a vehicle representative of the vehicle type to be approved shall be submitted to the testing organization responsible for the approval tests. For the type IV test, two sets of same carbon canisters shall be provided. For the type V test, two sets of same catalytic converters shall be provided. 4.2 Approval of type-approval If the vehicle type submitted for approval meets the technical requirements described in Clause 5, approval of that vehicle type shall be granted by the approval authority, and a certificate will be issued as well. A format of type-approval certificate is included in Annex B.

5 Specifications and tests

5.1 General 5.1.1 The components liable to affect the exhaust emissions, crankcase emissions and evaporative emissions shall be so designed, constructed and assembled as to enable the vehicle, in normal use, despite the vibration to which they may be subjected, to comply with the provisions of this Standard. 5.1.2 The technical measures taken by the manufacturer shall be such as to ensure that in conformity with the provisions of this Standard, exhaust emissions, crankcase emissions, and evaporative emissions are effectively limited throughout the normal life of the vehicle and under normal conditions of use. This will include the security of those hoses and their joints and connections, used within the emission control systems, which shall be so constructed as to comply with the original design intent. 5.1.3 Provisions shall be made to prevent excess evaporative emissions and fuel spillage caused by a missing fuel filler cap. This may be achieved by using one of the following. 5.1.4 Provisions for electronic control system security 5.2 Test items of type-approval Test items of type-approval for different vehicle types are given in Table 1. For light-duty hybrid electric vehicles, the relevant test shall be performed as set out in GB/T 19755. 5.3 Test description and requirement 5.3.1 Type I test (Emission test of exhaust emissions after a cold start at normal temperature) 5.3.2 Type II test (Two-speed idle test or free acceleration smoke test) 5.3.2.1 Two-speed idle test (determine CO, THC at two-speed idle and λ value at high idling speed) 5.3.5 Type V test (Durability test of pollution control devices) 5.3.5.1 This test shall be carried out on all vehicles. 5.3.6 Type VI test (Emission test of CO and THC in the exhaust after a cold start at low temperature) 5.3.7 OBD system test 5.3.8 Type-approval test of replacement pollution control device as separate technical unit 5.3.9 Type-approval test of vehicles fuelled by LPG or NG The vehicles fuelled by LPG or NG shall be tested in accordance with Annex K. 5.3.10 Technical requirements for vehicles that use a reagent for the exhaust after-treatment system The vehicles that use a reagent for the exhaust after-treatment system to reduce emissions shall meet the requirements in Annex O. 5.4 Fuels for test Among the type approval tests, except for Type V test, all tests shall adopt the reference fuels as described in Annex J; while the Type V test shall adopt the commercially available fuels complying with the relevant standard requirements.

6 Extensions to type approvals

The extension of the vehicle types having been subject to type approval under this Standard shall be performed by following the clauses below. 6.1 Extensions for exhaust emissions (Type I and Type VI tests) 6.1.1 Vehicle types with different reference masses 6.1.2 Vehicle types with different overall transmission ratios The type approval shall be extended to vehicles already approved with different transmission ratios only under the following conditions. 6.1.3 Vehicles types with different reference masses and transmission ratios The type approval shall be extended from a vehicle type already approved to other types with different reference masses and transmission ratios, provided that all the conditions prescribed in paragraphs 6.1.1 and 6.1.2 are fulfilled. 6.1.4 Vehicle types with periodically regenerating systems The type approval of a vehicle type equipped with a periodically regenerating system can be extended to other vehicle types with periodically regenerating systems, whose parameters described below are identical, or within the prescribed tolerances. The extension shall only relate to measurements specific to the defined periodically regenerating system. 6.2 Extensions for evaporative emissions (Type IV test) control system for evaporative emissions which meets the following conditions. 6.3 Extensions for durability of pollution control devices (Type V test) 6.4 Extensions for OBD system The type approval can be extended to the same vehicle-OBD family as described in Attachment IB. The type approval shall be extended regardless of the following vehicle characteristics. 6.5 Application of extensions to other vehicles When an extension has been granted to a vehicle type in accordance with paragraphs 6.1 to 6.4, such a type approval shall not be further extended to other vehicles.

7 Conformity of production

Measures shall be taken to ensure the conformity of production in accordance with Annex M. Conformity of production is checked on the basis of the descriptions set out in Annex A and Annex B. Where necessary, part of or all tests described in point 5.2 can be carried out. 7.1 Check of conformity of production for Type I test 7.1.1 When a Type I test is to be carried out for a vehicle type approval that has one or several extensions, the test may be carried out either on the vehicle type described in Annex A or on the vehicle type relating to the relevant extension. 7.1.2 After selection by the approval authority, the manufacturer shall not undertake any adjustment to the vehicles selected. 7.1.3 Notwithstanding the requirements specified in C.2.2.1, the tests shall be carried out on the qualified vehicles coming straight off the production line, instead of any running-in operation. 7.2 Check of conformity of production for Type II test 7.2.1 Check of the conformity of production for two-speed idle test of the vehicles equipped with positive ignition engines 7.2.2 Check of the conformity of production for free acceleration smoke test of the vehicles equipped with compression ignition engines 7.3 Check of conformity of production for Type III test 7.4 Check of conformity of production for Type IV test 7.5 Check of conformity of production for carbon canister 7.6 Check of conformity of production for catalytic converter 7.7 Check of conformity of production for OBD system 7.8 If a vehicle type fails to satisfy any one criterion for conformity of production as described in 7.1 to 7.7, the manufacturer shall take all necessary measures as soon as possible to re-build a guarantee system for conformity of production. Otherwise, the type-approval for that type of vehicle may be suspended or withdrawn by the related authority.

8 In-service conformity

8.1 For vehicles that have passed the pollutant emission type approval, necessary measures shall be taken by the manufacturer to ensure in-service conformity. The requirements for checking in-service conformity of exhaust emissions, OBD system and evaporative emissions are as described in Annex N. 8.2 The procedure for checking in-service conformity shall confirm the functionality of the pollution control devices during the normal useful life of the vehicles under normal conditions of use. 8.5 When additional vehicles are required for in-service conformity check, the in-service conformity shall be deemed as unsatisfactory in the event that the manufacturer requests terminating the sampling test. 8.6 Where the type-approval authority is not satisfied with the results of the tests, the manufacturer shall take remedial measures described in NA.6.Such remedial measures shall be extended to the vehicle types liable to be affected with the same defects.

9 Implementation of the standard

9.1 Type approval From the date of issuance of this Standard, type approval may be performed in accordance with this Standard. 9.2 Sales and registration From January 1, 2018, all light-duty vehicles sold and registered shall meet the requirements of this Standard. ......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.


      

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