QC/T 1091-2023 English PDF (QCT1091-2023)

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QC/T 1091-2023: Air Cleaner for Passenger coach
QC/T 1091-2023
QC
AUTOMOBILE INDUSTRY STANDARD
ICS 43.080.20
CCS T 42
Replacing QC/T 1091-2017
Air cleaner for bus
ISSUED ON. DECEMBER 20, 2023
IMPLEMENTED ON. JULY 01, 2024
Issued by. Ministry of Industry and Information Technology of the PRC
Table of Contents
Foreword... 7
1 Scope... 9
2 Normative references... 9
3 Terms and definitions... 10
4 General requirements... 12
5 Purification requirements... 13
6 Test method... 14
7 Inspection rules... 19
8 Marking, packaging, transportation, storage... 20
Appendix A (Informative) Test chamber... 23
Appendix B (Normative) Calculation method of decay constant... 26
Appendix C (Normative) Determination of volatile organic compounds - Gas
chromatography mass spectrometry... 28
References... 34
Air cleaner for bus
1 Scope
This document specifies the general requirements, purification requirements, test
methods, inspection rules and marking, packaging, transportation and storage of air
cleaner for bus.
This document is applicable to air cleaners installed in categories M2 and M3 buses.
Other vehicles can refer to it.
2 Normative references
The contents of the following documents constitute the essential terms of this document
through normative references in the text. Among them, for dated references, only the
version corresponding to that date is applicable to this document; for undated references,
the latest version (including all amendments) is applicable to this document.
GB/T 191 Packaging - Pictorial marking for handling of goods
GB/T 13306 Plates
GB/T 13554 High efficiency particulate air filter
GB/T 14295 Air filter
GB/T 15089 Classification of power-driven vehicles and trailers
GB/T 21087-2020 Energy recovery ventilators for outdoor air handling
GB 21551.3-2010 Antibacterial and cleaning function for household and similar
electrical appliances - Particular requirements of air cleaner
GB/T 30512 Requirements for prohibited substances on automobiles
GB 34660 Road vehicles - Requirements and test methods of electromagnetic
compatibility
GB 38262 Flammability of interior materials for buses
HJ/T 400-2007 Determination of volatile organic compounds and carbonyl
compounds in cabin vehicles
4 General requirements
4.1 Basic requirements
4.1.1 The rated voltage of the air cleaner for bus (hereinafter referred to as the "air
cleaner") shall be DC 12 V or DC 24 V.
4.1.2 The air cleaner shall be safe and odor-free.
4.1.3 The air cleaner shall be cleanable; the replaceable parts shall be easy to
disassemble and assemble.
4.1.4 The surface of the air cleaner shall be smooth and flat, without scratches, rust
spots, indentations, damage. The spray layer shall be uniform, without flow marks,
bubbles, peeling.
4.1.5 The parts shall be tight and not loose. The filter material, separator, protective net
and other parts shall not be deformed; the sealing gasket shall not be loose.
4.1.6 The outer shell of the air cleaner shall be marked with electrical safety warning
signs.
4.1.7 The materials used in the air cleaner shall meet the requirements for prohibited
substances in GB/T 30512.
4.2 Performance requirements
4.2.1 The air filter in the air cleaner shall comply with the relevant provisions of GB/T
14295 and GB/T 13554.
4.2.2 The combustion characteristics of non-metallic materials in the air cleaner shall
comply with the relevant provisions of GB 38262.
4.2.3 The basic technical requirements of air cleaners shall comply with the relevant
provisions of QC/T 413.
4.2.4 The electromagnetic compatibility of air cleaners shall comply with the relevant
provisions of GB 34660.
4.3 Rated power
The rated power of air cleaners shall meet the following requirements.
a) For nominal values not exceeding 30 W, the test results shall not exceed 120% of
the nominal value;
b) For nominal values exceeding 30 W, the test results shall not exceed 110% of the
specify, the highest wind speed and maximum air outlet state shall prevail). After
normal operation, turn off the air cleaner.
b) Arrange a sampling point. The sampling point shall avoid the air inlet and outlet,
at a distance from the chamber wall of no less than 0.5 m and a distance from the
laboratory floor of 1.1 m ~ 1.3 m. The sampling point is connected to the sampler
outside the test chamber through a pipeline.
c) Turn on the air filter to purify the air in the test chamber; start the temperature and
humidity control device at the same time, to make the temperature and relative
humidity of the test chamber reach the specified state.
d) After the temperature and relative humidity in the test chamber reach the specified
state, turn off the air filter and temperature and humidity control device; turn on
the stirring fan and circulation fan.
e) Put the cigarette (tar content is 8 mg ~ 11 mg) into the cigarette burner; connect
the burner to the low-pressure air source; connect the smoke outlet of the burner
to a pipe that passes through the test chamber wall. Light the cigarette; cover the
burner; after burning for a period of time, close the valve of the smoke delivery
pipe; run the stirring fan for another 10 minutes, to mix the particulate pollutants
evenly.
f) After the stirring fan stops rotating, record the initial concentration C0, which shall
be within the initial concentration range specified in Table 1, corresponding to t
= 0 min. Turn on the air cleaner to be tested at the same time. After that, measure
and record the concentration of particulate matter every 10 minutes. Measure
continuously for 60 minutes.
g) Calculate the total decay constant ke of particulate matter in accordance with the
provisions of Appendix B; calculate the correlation coefficient R2, requiring R2 ≥
0.98.
6.8.4 Calculation
6.8.4.1 Calculation of clean air delivery rate
The clean air delivery rate is calculated according to formula (2).
Where.
Qj - Clean air delivery rate, in cubic meters per hour (m3/h);
ke - Total decay constant, in minus one power (min-1);
c) Sampling pump, calibrated with a primary flow meter to ensure that the flow
deviation before and after sampling does not exceed 5%;
d) Sampling tank, which is a stainless steel tank with an inert inner wall.
6.9.3 Test steps
6.9.3.1 Test run
The test run steps of the air cleaner shall be carried out in accordance with 6.8.3.1.
6.9.3.2 Total decay test of gaseous pollutants
The total decay test of gaseous pollutants shall be carried out in accordance with the
following steps.
a) The adjustment of the air cleaner, the arrangement of sampling points, the
determination of record files, the setting of the cabin environment shall be carried
out in accordance with a) ~ d) in 6.8.3.2.
b) Connect the gaseous pollutant generator to a pipe that passes through the test cabin
wall, so that the generated gaseous pollutants enter the test chamber through the
pipe. After the generated gaseous pollutants are delivered for a period of time,
turn off the generator. Run the stirring fan for another 10 minutes, to mix the
gaseous pollutants evenly; then turn off the stirring fan.
c) After the stirring fan stops rotating, collect the gaseous pollutants in the test
chamber. The initial concentration of the gaseous pollutants is C0, which shall be
within the initial concentration range specified in Table 1.
d) The initial concentration in the test chamber is collected, corresponding to t = 0
min; the air c...