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GB/T 35751-2017

Chinese Standard: 'GB/T 35751-2017'
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Detail Information of GB/T 35751-2017; GB/T35751-2017
Description (Translated English): Nonwovens and composite nonwovens for automotive interior
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: W59
Classification of International Standard: 59.080.30
Word Count Estimation: 14,117
Date of Issue: 2017-12-29
Date of Implementation: 2018-07-01
Drafting Organization: Textile Standard Test Certification Co., Ltd.
Administrative Organization: National Textile Standardization Technical Committee
Regulation (derived from): National Standards Bulletin 2017 No. 32
Proposing organization: China Textile Industry Federation
Issuing agency(ies): People's Republic of China General Administration of Quality Supervision, Inspection and Quarantine, China National Standardization Administration

GB/T 35751-2017
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 59.080.30
W 59
Nonwovens and composite nonwovens
for automotive interior
汽车装饰用非织造布及复合非织造布
ISSUED ON. DECEMBER 29, 2017
IMPLEMENTED ON. JULY 1, 2018
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine of the PRC;
Standardization Administration of the PRC.
Table of Contents
Foreword ... 3 
1 Scope ... 4 
2 Normative references ... 4 
3 Terms and definitions ... 5 
4 Technical requirements ... 5 
5 Test methods ... 7 
6 Inspection rules ... 10 
7 Marking, packing, transport, and storage ... 12 
Appendix A (Normative) Determination of odor ... 13 
Nonwovens and composite nonwovens
for automotive interior
1 Scope
This Standard specifies the terms and definitions, technical requirements, test
methods, inspection rules, marking, packing, transport, and storage of
nonwovens and composite nonwovens for automotive interior.
This Standard is applicable to the nonwovens and composite nonwovens for
automotive calash, side body, hat & coat rack, trunk, seat back layer, carriage
floor mat, which are mainly made of textile raw materials and processed through
nonwoven technology.
2 Normative references
The following documents are indispensable for the application of this document.
For the dated references, only the versions with the dates indicated are
applicable to this document. For the undated references, the latest version
(including all the amendments) are applicable to this document.
GB/T 250 Textiles - Tests for colour fastness - Grey scale for assessing
change in colour
GB/T 2912.2 Textiles - Determination of formaldehyde - Part 2. Released
formaldehyde (vapour absorption method)
GB/T 3917.3 Textiles - Tear properties of fabrics - Part 3. Determination of
tear force of trapezoid-shaped test specimens
GB/T 3920 Textiles - Tests for colour fastness - Colour fastness to rubbing
GB/T 4666 Textiles - Fabrics - Determination of width and length
GB/T 4745 Textile fabrics - Determination of resistance to surface wetting -
Spray test
GB/T 6529 Textiles - Standard atmospheres for conditioning and testing
GB/T 8170 Rules of rounding off for numerical values & expression and
judgement of limiting values
GB 8410 Flammability of automotive interior materials
GB/T 16991-2008 Textiles - Test for colour fastness - Colour fastness and
ageing to artificial light at high temperatures. Xenon arc
GB/T 18186-2000 Fermented soy sauce
GB/T 19977 Textiles - Oil repellency - Hydrocarbon resistance test
GB/T 24218.1 Textiles - Test methods for nonwovens - Part 1. Determination
of mass per unit area
GB/T 24218.2 Textiles - Test methods for nonwovens - Part 2. Determination
of thickness
GB/T 24218.3 Textiles - Test methods for nonwovens - Part 3. Determination
of tensile strength and elongation (strip method)
GB/T 24346 Textiles - Evaluation for anti-mould activity
GB/T 33276-2016 Knitted fabrics and knitted composite fabrics for
automotive interior
FZ/T 01118 Textiles - Testing and evaluation for anti-soil properties - Soil
release
FZ/T 01128 Textiles - Determination of abrasion resistance - Double-head
method
FZ/T 60011 Test Method for Peeling Strength of Compound Fabrics
FZ/T 60045-2014 Textile trim materials in the interior of automobiles - Test
method for fogging characteristics
3 Terms and definitions
3.1 Composite nonwovens for automotive interior
A composite for automotive interior with nonwovens as its surface material and
with two or more layers by bonding nonwovens, woven fabrics, knitted fabrics,
and other textiles.
4 Technical requirements
4.1 Inherent quality
The inherent quality requirements for nonwovens and composite nonwovens
for automotive interior are shown in Table 1.
to be tested for 3 cycles. The trunk, seat back layer, carriage floor mat need to
be tested for 5 cycles. The rear hat & coat rack needs to be tested for 10 cycles.
5.1.10 Dimensional stability under thermal storage
According to standard atmospheres specified in GB/T 6529, CONDITION the
specimens for at least 4 h; TAKE two test specimens of 300 mm×300 mm in
size. In the longitudinal and transverse directions of each sample, MAKE three
sets of markers, so that the distance between each set of markers is 200 mm;
PLACE the specimens on a metal net of about 16 mesh; PLACE it in an oven,
and at a temperature of 110 °C, START timing; after placing it for 5 min,
REMOVE it; according to standard atmospheres specified in GB/T 6529,
CONDITION it for at least 4 h; and MEASURE the distance between each
marker, accurate to 1 mm. CALCULATE the longitudinal and transverse
dimensional change rate and average of the specimens; according to the
method specified in GB/T 8170, ROUND off the data. The calculation result
remains one decimal place. Negative sign (-) means a decrease (contraction);
and positive sign (+) means an increase (elongation).
5.1.11 Flammability
Performed according to the provisions of GB 8410.
5.1.12 Formaldehyde content
Performed according to the provisions of GB/T 2912.2.
5.1.13 Fogging characteristics
Performed according to the provisions of weight method under 8.2 of FZ/T
60045-2014.
5.1.14 Odor
Performed according to the provisions of Appendix A.
5.1.15 Organics volatilization
Performed according to the provisions of Appendix C of GB/T 33276-2016.
5.1.16 Soil release
Performed according to the wiping method specified in FZ/T 01118. The high-
salt liquid-state fermented soy sauce (light soy sauce) given in GB/T 18186-
2000 is selected as the contaminant. As needed, other contaminants can also
be used, which must be stated in the report.
Appendix A
(Normative)
Determination of odor
A.1 Test devices
A.1.1 Seal can. two sealed cans with a volume of 1 L, odorless at room
temperature and 80 °C, with easy-to-open covers.
A.1.2 Oven. with air circulation system, able to control constant temperature at
(80±2)°C.
A.2 Test environment
The test shall be conducted in a clean, odorless environment.
A.3 Testers
Testers shall be professionals trained and tested.
A.4 Test specimen preparation
A.4.1 Test specimen area. When the thickness of test specimen is less than or
equal to 3 mm, the sampling area is (200±20)cm2. When the thickness of test
specimen is greater than 3 mm less than or equal to 20 mm, the sampling area
is (50±5)cm2. When the thickness of test specimen is greater......
Related standard:   GB/T 35752-2017  GB/T 35754-2017
   
 
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