QC/T 1163-2022 English PDF (QCT1163-2022)

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QC/T 1163-2022: Automotive diesel engines - Reduction agent filter for selective catalytic reduction (SCR) system
QC/T 1163-2022
QC
AUTOMOBILE INDUSTRY STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
ICS 43.060.20
CCS T 13
Automotive diesel engines - Reduction agent filter for
selective catalytic reduction (SCR) system
ISSUED ON: APRIL 08, 2022
IMPLEMENTED ON: OCTOBER 01, 2022
Issued by: Ministry of Industry and Information Technology of PRC
Table of Contents
Foreword ... 6
1 Scope ... 7
2 Normative references ... 7
3 Terms and definitions ... 8
4 Requirements ... 9
5 Test method ... 12
6 Inspection rules ... 16
7 Marking, packaging, transportation, storage ... 17
Automotive diesel engines - Reduction agent filter for
selective catalytic reduction (SCR) system
1 Scope
This document specifies the technical requirements, test methods, inspection rules,
marking, packaging, transportation, storage of reduction agent filter for selective
catalytic reduction (SCR) system of automobile diesel engines.
This document applies to reduction agent filter for selective catalytic reduction (SCR)
system of automotive diesel engines, which have a rated volume flow rate of 40 L/h or
less (referred to as filter).
2 Normative references
The contents of the following documents constitute the essential provisions of this
document through normative references in the text. Among them, for dated references,
only the version corresponding to the date is applicable to this document; for undated
references, the latest version (including all amendments) is applicable to this document.
GB/T 2423.4 Environmental testing for electric and electronic products - Part 2: Test
method - Test Db: Damp heat, cyclic (12h + 12h cycle)
GB/T 2828.1-2012 Sampling procedures for inspection by attributes - Part 1:
Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot
inspection
GB/T 5923 Test methods of fuel filter for automotive compression ignition engines
GB/T 10125 Corrosion tests in artificial atmospheres - Salt spray tests
GB/T 17486 Hydraulic fluid power - Filters - Evaluation of differential pressure
versus flow characteristics
GB/T 28950.1-2012 Road vehicles and internal combustion engines - Filter
vocabulary - Part 1: Definitions of filters and filter components
GB/T 28950.2-2012 Road vehicles and internal combustion engines - Filter
vocabulary - Part 2: Definitions of characteristics of filters and their components
GB 29518 Diesel engines NOx reduction agent - Aqueous urea solution (AUS 32)
GB/T 35363 Diesel fuel and petrol filters for vehicle engines - The test method for
filtration efficiency and contaminant retention capacity - Method of particle
counting
QC/T 772 Test methods of diesel-fuel filter for automobiles
ISO 16232 Road vehicles - Cleanliness of components and systems
3 Terms and definitions
The terms and definitions as defined in GB/T 28950.1-2012 and GB/T 28950.2-2012,
as well as the following terms and definitions, apply to this document.
3.1
Urea for AUS 32
Industrially produced urea, which has only trace impurities of biuret, ammonia and
water, is free of aldehydes and other substances such as anti-caking agents, sulfur
and sulfides, chlorides, nitrates or other compounds.
Note: For the pollutants mentioned above, they will have an impact in the urea production
process, so the content and test methods must be strictly controlled. Urea produced as
agriculture usually contains the above compounds.
[Source: GB 29518-2013, 3.2, with modifications]
3.2
NOx reduction agent-Aqueous urea solution (AUS 32)
The aqueous solution, which is prepared using special urea and pure water, without
any other additives; the content of urea in the solution is 32.5% (mass fraction),
which meets the technical requirements stipulated in Chapter 5, referred to as AUS
32.
Note: Tracers that meet the requirements of Table 1 can be used as additives.
[Source: GB 29518-2013, 3.4]
3.3
Direction of flow; flux direction
Indicates the direction of fluid flow through the filter or element.
Note: The direction of flow is generally indicated by an arrow.
4.6 filter element structural integrity and 4.7 tightness.
4.12 High pressure drop resistance of filter element
4.12.1 Forward flow resistance to high pressure drop
Under the action of rated flow rate and 100 kPa pressure drop, the filter element shall
have no defects such as collapse and rupture; meanwhile it shall meet the requirements
of 4.6 filter element structural integrity.
4.12.2 Reverse flow resistance to high pressure drop
Under the rated flow rate and 160 kPa pressure drop, the filter element shall have no
defects such as collapse and rupture; meanwhile it shall meet the requirements of 4.6
filter element structural integrity.
4.13 Liquid corrosion resistance
After soaking in urea aqueous solution at a temperature of 60 °C ± 5 °C for 22 hours,
there shall be no obvious signs of structural rupture, damage or functional degradation;
meanwhile it shall meet the requirements of 4.6 filter element structural integrity and
4.7 tightness.
4.14 Salt spray corrosion resistance
After 200 h of salt spray test, there shall be no visually visible defects such as white or
red rust, peeling, etc. on the surface of the part; meanwhile it shall meet the
requirements of 4.7 tightness.
4.15 Temperature and humidity resistance
Appearance inspection after 24 h cycle test: there is no phenomenon such as metal
coating oxidation, blurred identification, filter element deformation; meanwhile it shall
meet the requirements of 4.6 filter element structural integrity and 4.7 tightness.
4.16 High and low temperature resistance
After the sample is placed at -40 °C for 2 hours, the temperature is evenly raised to
85 °C, at a rate of not less than 5 °C/min. After being placed at 85 °C for 2 hours, the
temperature is reduced to -40 °C, at rate of not less than 5 °C/min. This forms 1 cycle.
This is repeated, after completing 60 cycles. It shall meet the requirements of 4.6 filter
element structural integrity and 4.7 tightness.
4.17 Pulling strength of filter element end cover
When calculated according to the surface area of the upper and lower end caps, the pull-
off force of the filter element end cap shall not be less than 0.17 N/mm2.
5 Test method
5.1 Test conditions
Unless otherwise stated, performance tests shall be conducted under the following
conditions:
a) Test fluid temperature: 25 °C ± 5 °C;
b) Test ambient temperature: 25 °C ± 5 °C;
c) Test ambient air pressure: 101.3 kPa ± l5 kPa;
d) If there is no special instruction in the test specification, the test fluid shall comply
with the specification of GB 29518 Diesel engines NOx reduction agent -
Aqueous urea solution (AUS 32) or other test medium confirmed by both the
supplier and the purchaser.
5.2 Measurement of original resistance
Follow the provisions of 6.3 in GB/T 5923.
Note: The connecting pipeline requirements shall comply with the provisions of GB/T 17486.
5.3 Original filtration efficiency test
Under the rated volume flow rate, follow the provisions of GB/T 35363.
5.4 Dust holding capacity test
Under the rated volume flow rate, follow the provisions of GB/T 35363.
5.5 Cleanliness test
5.5.1 Gravimetric method
Follow the provisions of 6.1 in GB/T 5923.
5.5.2 Particle counting method
Follow the provisions of ISO 16232.
5.6 Element structural integrity
Follow the provisions of 6.2 in GB/T 5923.
5.7 Tightness test
The parameters of the vibration...