GB/T 23317-2019 PDF English
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Specification for clothing made of coated fabrics for protection against wet weather
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| GB/T 23317-2009 | English | 639 |
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Specification for clothing made from coated fabrics for protection against wet weather
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GB/T 23317-2019: PDF in English (GBT 23317-2019) GB/T 23317-2019
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 61.020
Y 75
Partially replacing GB/T 23317-2009
Specification for clothing made of coated fabrics for
protection against wet weather
ISSUED ON: JUNE 04, 2019
IMPLEMENTED ON: JANUARY 01, 2020
Issued by: State Market Regulatory Administration;
Standardization Administration of PRC.
Table of Contents
Foreword ... 3
1 Scope ... 5
2 Normative references ... 5
3 Terms and definitions ... 6
4 Type and design, production requirements ... 6
5 Performance requirements ... 7
6 Test methods ... 8
Appendix A (Informative) Special design to choose ... 10
Appendix B (Normative) Test method for adhesion of patch pockets ... 11
Appendix C (Normative) Test method of hanger loop’s strength ... 13
Specification for clothing made of coated fabrics for
protection against wet weather
1 Scope
This standard specifies the type and design, production requirements,
performance requirements and test methods of woven coated garments.
This standard is applicable to woven garments such as outerwear, jackets,
overalls, outer pants and jumpsuits. Clothing products such as waterproof hats
can be implemented with reference to this standard.
This standard does not apply to the clothes for infants and young children aged
36 months and below.
2 Normative references
The following documents are indispensable for the application of this document.
For dated references, only the dated version applies to this document. For
undated references, the latest edition (including all amendments) applies to this
document.
GB/T 3917.4 Textiles - Tear properties of fabrics - Part 4: Determination of
tear force of tongue-shaped test specimens (Double tear test)
GB/T 4744 Textiles - Testing and evaluation for water resistance -
Hydrostatic pressure method
GB/T 4745 Textile fabrics - Determination of resistance to surface wetting -
Spray test
GB/T 8629-2017 Textiles - Domestic washing and drying procedures for
textile testing
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 15557 Terms used by the clothing industry
FZ/T 01010 Coated fabrics - Determination of coating peeling strength
seams in Table 1.
4.2.2 The design of overalls shall comply with the provisions of 4.1.3 ~ 4.1.7.
4.3 Outer pants
4.3.1 For pants with tight waist, it shall provide an elastic band or drawstring at
the waist of the pants. For pants with no tight waist, it shall be designed as
straps or overalls. The seams on the garment and the seams between the
garment and the part shall comply with the performance requirements of the
seams in Table 1.
4.3.2 If there are hanger loop, it shall meet the performance requirements of
the hanger loop in Table 1.
4.4 One-piece suit
4.4.1 The one-piece suit shall cover the human body, including the ankle, neck
and wrist joints. The front top fly’s length is at least 65 cm. The seams on the
garment and the seams between the garment and the part shall comply with
the performance requirements of the seams in Table 1.
4.4.2 The design of the one-piece suit shall comply with the provisions of 4.1.3
~ 4.1.7.
4.5 Waterproof hat
The waterproof hat shall have a strap attached to the chin. The waterproof hat
is not suitable for children under the age of 7 and the straps for the waterproof
hat of the child over 7 years old shall not have a free end.
4.6 Special design
Other special designs that can be chosen are as shown in Appendix A.
5 Performance requirements
Product’s performance requirements shall meet the requirements of Table 1.
Appendix B
(Normative)
Test method for adhesion of patch pockets
B.1 Principle
Test the maximum force the pocket takes when it is detached from the garment.
B.2 Equipment
B.2.1 Constant-velocity elongation tester
Means for indicating or recording the maximum force applied to the specimen
to stretch to break. The error indicating or recording the breaking force shall not
exceed ±1%. The rate shall be 100 mm/min. The accuracy shall be ±10%. The
width of the tongs shall be 25 mm.
If the value of the force is obtained by the use of a data acquisition circuit or
software, the frequency of data acquisition is not less than 8 times/s.
B.2.2 Metal plate
See Figure B.1.
B.3 Test procedure
Take two specimens containing pockets from the garment, which is 25 cm wide
and 35 cm long. The mouth of pocket is at the center of the specimen. Wet the
specimen at a temperature of (20 ± 2) °C and a relative humidity of (65 ± 5)%
for at least 16 h.
Hold the pocket mouth on the moving tangs of the strength meter. Insert one
end of the curved metal plate into the pocket. Clamp the other end of the metal
plate on the other tangs of the strength meter, the length of the gauge is 100
mm. The strength meter is moves at the speed of 100 mm/min.
Record the force when the pocket is out of the garment and report the average,
in the unit of N. When it is 100 N and below, it is rounded off to 1 N. When it is
more than 100 N and less than 1000 N, it is rounded off to 10 N. When it is
1000 N and above, it is rounded off to 100 N.
Appendix C
(Normative)
Test method of hanger loop’s strength
C.1 Principle
Test the force that the hanger loop is stretched to breakage.
C.2 Equipment
C.2.1 Constant-velocity elongation tester
A device that indicates or records the maximum force applied to the specimen
to stretch to break. The error indicating or recording the breaking force shall not
exceed ±1%. The rate is 100 mm/min. The accuracy is ±10%. The clamp’s width
is 25 mm.
If the value of the force is obtained by the use of a data acquisition circuit or
software, the frequency of data acquisition is not less than 8 times/s.
C.2.2 Horizontal bar
It is equipped with a horizontal bar of 7 mm diameter for the placement of the
hanger loop.
C.3 Test procedure
Take a specimen containing a hanger loop from the garment. The size of
specimen is 15 cm x 13 cm. Make a marking line in the middle of the hanger
loop. Wet the specimen at a temperature of (20 ± 2) °C and a relative humidity
of (65 ± 5)% for at least 16 h.
The hanger loop is placed on the horizontal bar which is installed on the moving
clamp. The middle of the hanger loop is in contact with the horizontal bar. The
end of the specimen without the hanger loop is clamped to the other clamp of
the strength meter (see Figure C.1). The spacing is 100 mm and the strength
meter moves at a speed of 100 mm/min.
Record the force when the hanger loop breaks and report the average, in the
unit of N. When it is 100 N and below, it is rounded off to 1 N. When it is more
than 100 N and less than 1000 N, it is rounded off to 10 N. When it is 1000 N
and above, it is rounded off to 100 N.
......
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.
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