QC/T 236-2019 English PDF (QCT236-2019)

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QC/T 236-2019: Test method for automotive interior decorative material properties
QC/T 236-2019
QC
AUTOMOBILE INDUSTRY STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
ICS 43.040.60
T 20
Replacing QC/T 236-1997
Test method for automotive interior decorative
material properties
ISSUED ON: NOVEMBER 11, 2019
IMPLEMENTED ON: APRIL 01, 2020
Issued by: Ministry of Industry and Information Technology of PRC
Annex:
39 automotive industry standard numbers, standard names
and implementation dates
No. Standard number Standard name Replaced standard number
Date of
implementation
33 QC/T 826-2019 Bridge inspection vehicle QC/T 826-2010 2020-04-01
34 QC/T 1107-2019 Compression garbage truck 2020-04-01
35 QC/T 53-2019 Fecal suction truck QC/T 53-2006 2020-04-01
36 QC/T 1108-2019 Pneumatic solenoid valve for commercial vehicles 2020-04-01
37 QC/T 708-2019 Automotive air conditioning fan QC/T 708-2004 QC/T 29092-1992 2020-04-01
38 QC/T 1109-2019 Dimming motor for automotive front lighting 2020-04-01
39 QC/T 829-2019 Technical requirements for diesel vehicle exhaust aftertreatment system QC/T 829-2010 2020-04-01
40 QC/T 1110-2019 Fuel heating device for automobile diesel engine 2020-04-01
41 QC/T 1113-2019
Technical requirements and test methods for quick-
plug connectors for automobile pneumatic brake
systems
2020-04-01
42 QC/T 29082-2019 Technical conditions of automobile drive shaft assembly and bench test method
QC/T 29082-1992
QC/T 523-1999 2020-04-01
43 QC/T 1114-2019
Technical conditions and bench test methods for
automobile’s mechanical automatic transmission (AMT)
assembly
2020-04-01
44 QC/T 568-2019 Technical conditions and bench test methods of automobile mechanical transmission assembly
QC/T 568.1-2011
QC/T 29063.1-2011 2020-04-01
45 QC/T 1115-2019 Technical requirements and test methods of automatic transmission (AT) 2020-04-01
46 QC/T 216-2019 Car carpet QC/T 216-1996 2020-04-01
47 QC/T 1116-2019 Dust suppression vehicle 2020-04-01
48 QC/T 1117-2019 Animal and poultry harmless transport vehicles 2020-04-01
49 QC/T 453-2019 Van transport truck QC/T 453-2002 2020-04-01
50 QC/T 447-2019 Construction slab transport truck QC/T 447-1999 2020-04-01
51 QC/T 1118-2019 Technical requirements for van exchange box 2020-04-01
52 QC/T 1121-2019 Plastic fuel tanks for automobiles 2020-04-01
53 QC/T 1122-2019 Technical requirements of electric water pump for automobile engine 2020-04-01
54 QC/T 626-2019 Automotive window regulator QC/T 626-2008 QC/T 636-2014 2020-04-01
Table of Contents
Foreword ... 7 
1 Scope ... 9 
2 Normative references ... 9 
3 Conditioning of specimen state ... 10 
4 Test method ... 10 
Appendix A (Normative) Required load elongation and residual distortion ... 16 
Appendix B (Normative) Determination of formaldehyde content ... 18 
Appendix C (Normative) Determination of total carbon volatilization ... 24 
Test method for automotive interior decorative
material properties
1 Scope
This standard specifies the test methods for the mass per unit area, thickness,
breaking strength (tensile strength) and elongation at break, joint strength,
required load elongation and residual deformation, abrasion resistance, color
fastness to rubbing, color fastness to light, odor, formaldehyde content,
atomization, total carbon volatilization, combustion characteristics of
automotive interior textiles (including woven fabrics, knitted fabrics, non-woven
fabrics) and synthetic leather materials.
This standard applies to test the automotive interior textiles (including woven
fabrics, knitted fabrics, non-woven fabrics) and synthetic leather materials.
2 Normative references
The following documents are essential to the application of this document. For
the dated documents, only the versions with the dates indicated are applicable
to this document; for the undated documents, only the latest version (including
all the amendments) are applicable to this standard.
GB/T 3920 Textiles - Tests for color fastness - Color fastness to rubbing
GB/T 3923.1 Textiles - Tensile properties of fabrics - Part 1:
Determination of maximum force and elongation at maximum force using the
strip method
GB/T 4669- 2008 Textiles - Woven fabrics - Determination of mass per unit
length and mass per unit area
GB/T 13773.1 Textiles - Seam tensile properties of fabrics and made-up
textile articles - Part 1: Determination of maximum force to seam rupture
using the strip method
GB/T 16991 Textiles - Test for color fastness - Color fastness and ageing to
artificial light at high temperatures: Xenon arc
GB/T 21196.2 Textiles - Determination of the abrasion resistance of fabrics
by the Martindale method - Part 2: Determination of specimen breakdown
4.8 Color fastness to light
It is performed according to the provisions of GB/T 16991. The test conditions
adopt the condition 3 in clause 6.1; the test parameters are as follows:
- Black label thermometer temperature: (100 ± 3) °C;
- Test chamber temperature: (65 ± 3) °C;
- Relative humidity of the test chamber: (30 ± 5) %;
- Irradiation (under 420 nm): 1.2 W/m2;
- Light filter system: Borosilicate/soda lime.
4.9 Odor
4.9.1 Test device
- The thermostat with air circulation function, the accuracy of which is ± 2 °C;
- A glass container with a capacity of 1 L, with a gasket and a lid (no disturbing
odor).
4.9.2 Test procedure
4.9.2.1 Specimen
Take 3 specimens on the same piece: when the thickness of the specimen is
less than 3 mm, the size of the specimen is (200 ± 20) cm2. When the thickness
of the specimen is between 3 mm ~ 20 mm, the size of the specimen is (50 ±
5) cm3. When the thickness of the specimen is more than 20 mm, cut the
specimen downwards along the use side to the thickness of 20 mm.
Samples need to be offline for no more than 15 days; they need to be packed
in aluminum foil or polyethylene (PE) bags, and stored at room temperature and
protected from light.
4.9.2.2 Test
The sealed glass container in which the specimen is placed shall have no
peculiar smell at room temperature and 80 °C.
Place the three specimens in three 1 L glass sealed containers. Store them in
accordance with the test conditions in Table 4.
Appendix A
(Normative)
Required load elongation and residual distortion
A.1 Scope
This Appendix gives the test methods for the required load elongation and
residual distortion of automotive interior decoration textiles (including woven
fabrics, knitted fabrics, non-woven fabrics) and synthetic leather materials. It is
suitable for testing the required load elongation and residual distortion of
automotive interior decoration textiles (including woven fabrics, knitted fabrics,
non-woven fabrics) and synthetic leather materials under certain conditions.
A.2 Terms and definitions
The following terms and definitions apply to this appendix.
A.2.1
Required load elongation
The rate of change between the length of the specimen under constant time
and tension and the original length (before tension).
A.2.2
Residual distortion
The rate of change between the length of the specimen after a certain period
of unloading and the original length (before tension).
A.3 Test device
Required load extension frame (with fixtures, weights), or electronic tensile
machines that meet the test requirements can be used. The width of the clamp
shall be greater than 60 mm; the length measuring device has an accuracy of
1 mm.
A.4 Test procedure
...