QC/T 1165-2022 English PDF (QCT1165-2022)

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QC/T 1165-2022: Carbon canister air filter for gasoline passenger car
QC/T 1165-2022
QC
AUTOMOBILE INDUSTRY STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
ICS 43.060.40
CCS T 13
Carbon canister air filter for gasoline passenger car
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 Technical requirements ... 8
5 Test method ... 9
6 Inspection rules ... 14
7 Marking, packaging, transportation, storage ... 15
Carbon canister air filter for gasoline passenger car
1 Scope
This document specifies the technical requirements, test methods, inspection rules,
marking, packaging, transportation and storage of carbon canister air filter for gasoline
passenger car.
This document is applicable to carbon canister air filter for gasoline passenger car,
which has a rated volume flow rate of 22.7 L/min ~ 70 L/min (referred to as canister air
filters). Other canister air filters can also be used as a reference.
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 applies to this document; for undated
references, the latest version (including all amendments) applies to this document.
GB/T 2423.1-2008 Environmental testing - Part 2: Test methods - Tests A: Cold
GB/T 2423.2-2008 Environmental testing - Part 2: Test methods - Tests B: Dry heat
GB/T 2423.55-2006 Environmental testing for electric and electronic products - Part
2: Test methods - Test Eh: hammer tests
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 14041.1-2001 Hydraulic fluid power - Filter elements - Part 1: Verification of
fabrication integrity and determination of the first bubble point
GB/T 28949-2012 Inlet air cleaning equipment for internal combustion engines and
compressors - Performance testing
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/T 28957.1-2012 Road vehicles - Test dust for filter evaluation - Part 1: Silicon
dioxide test dust
3 Terms and definitions
The terms and definitions, which are defined in GB/T 28949-2012, GB/T 28950.1-2012,
GB/T 28950.2-2012, as well as the following terms and definitions, apply to this
document.
3.1
Carbon canister air filter
A filter, which is specially designed, to filter the dusty air drawn into the canister.
3.2
Filtration efficiency
The percentage -- of the mass of the dust filtered by the test piece TO the mass of
the added dust.
4 Technical requirements
4.1 General requirements
The technical requirements of the canister air filter shall comply with the provisions of
this document.
4.2 Original resistance
Under the rated air volume flow rate, the original resistance of the canister air filter
shall not be greater than 150 Pa.
4.3 Filtration efficiency
Under the rated air volume flow rate, when the intake resistance reaches 750 Pa, the
filtration efficiency of the canister air filter shall not be less than 99%.
4.4 Ash capacity
Under the rated air volume flow rate, when the air intake resistance reaches 750 Pa, the
ash holding capacity of the canister air filter shall not be less than 21 g, OR as agreed
upon by the supplier and the buyer.
4.5 Structural integrity of filter element
The initial bubbling pressure of the carbon canister's air filter element shall be as
5.1.6.1.3 The original resistance is the static pressure value, which is measured at the
pressure measuring point, downstream of the test piece. During the test, measure and
record the static pressure value of the downstream pressure measuring point, under each
air flow, based on 50%, 75%, 100%, 125%, 150% of the rated air flow (or as agreed
between the supplier and the buyer).
5.1.6.1.4 Record the ambient temperature, relative humidity, atmospheric pressure
during the test.
5.1.6.2 Filtration efficiency
5.1.6.2.1 Properly connect the test piece with the test bench, according to Figure 1.
5.1.6.2.2 Start the air extractor, to pump air at the rated air flow rate for at least 15
minutes, to stabilize the state of the test piece.
5.1.6.2.3 Weigh the test piece and the absolute filter. Record the initial mass of the test
piece and the absolute filter.
5.1.6.2.4 Properly connect the ash adding tooling, test piece and test equipment.
5.1.6.2.5 Start the test bench. Adjust the flow rate to the test flow rate and make it stable.
Record the resistance value.
5.1.6.2.6 Start to add ash to the air. The ash concentration is l g/m3, OR according to
the ash concentration, which is agreed upon by the supplier and the buyer.
5.1.6.2.7 Continue the test, until it reaches the specified test termination resistance value
of 750 Pa.
5.1.6.2.8 Weigh the test piece and the absolute filter. Record the mass of the test piece
and the absolute filter, after the test. Calculate the mass increment of the test piece and
the absolute filter.
5.1.6.2.9 Calculate the filtration efficiency, according to formula (1)
Where:
E - Filtration efficiency, in percentage (%);
ΔmU - The mass increment of the test piece, in grams (g);
ΔmF - The mass increment of the absolute filter, in grams (g).
5.1.6.2.10 Record the ambient temperature, relative humidity, atmospheric pressure
during the test.
5.1.6.3 Ash capacity
5.1.6.3.1 The ash holding capacity test can be carried out, simultaneously with the
filtration efficiency test.
5.1.6.3.2 Weigh the test piece and the absolute filter. Record the initial mass of the test
piece and the absolute filter.
5.1.6.3.3 Properly connect the ash adding tooling, test piece, test equipment.
5.1.6.3.4 Start the test bench. Adjust the flow rate to the test flow rate and make it stable.
Record the pressure difference.
5.1.6.3.5 Start to add ash to the air. The ash concentration is 1 g/m3, OR according to
the ash concentration agreed upon by the supplier and the buyer.
5.1.6.3.6 Continue the test, until the specified test termination resistance value is
reached.
5.1.6.3.7 Weigh the test piece and the absolute filter. Record the mass of the test piece
and the absolute filter, after the test.
5.1.6.3.8 Calculate the ash capacity C, according to formula (2):
Where:
C - Ash capacity, in gram (g);
B - The mass of the test piece after the test, in grams (g);
D - The mass of the test piece before the test, in grams (g).
5.1.6.3.9 Record the ambient temperature, relative humidity, atmospheric pressure
during the test.
5.2 Low temperature impact resistance
Place the canister air filter in a low-temperature box at -30 °C ± 2 °C for 4 hours. Within
30 seconds after taking out, according to the requirements of the test Ehc: vertical drop
weight in Chapter 6 of GB/T2423.55-2006, carry out the drop weight impact test on the
visible surface of the canister air filter, at room temperature. The standard drop weight
is a steel ball, which has a mass of 500 g and a free fall height of 0.4 m. The drop weight
impact point is at a v...