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QB/T 4331-2012

Chinese Standard: 'QB/T 4331-2012'
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Detail Information of QB/T 4331-2012; QB/T4331-2012
Description (Translated English): Children athletic shoes
Sector / Industry: Light Industry Industry Standard (Recommended)
Classification of Chinese Standard: Y78
Classification of International Standard: 61.060
Word Count Estimation: 14,121
Quoted Standard: GB/T 251; GB/T 2703; GB/T 2912.1-2009; GB/T 3293; GB/T 3293.1; GB/T 3903.1-2008; GB/T 3903.2-2008; GB/T 3903.3-2011; GB/T 3903.4-2008; GB/T 3903.5-2011; GB/T 3903.20-2008; GB/T 3903.21-2008; GB/T 17592-2006; GB/T 19941-2005; GB/T 19942-2005; GB 20400; QB/
Drafting Organization: China Leather and Footwear Industry Research Institute
Administrative Organization: National Standardization Technical Committee footwear
Regulation (derived from): ?MIIT Announcement 2012 No.20; Industry Standard Filing Announcement 2012 No.7 (Total No.151);
Summary: This standard specifies the classification of children's shoes products, technical requirements, test methods, inspection rules and signs, packaging, transport and storage. This standard applies to general wear and children's shoes infant shoes.

QB/T 4331-2012
QB
LIGHT INDUSTRY STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
ICS 61.060
Classification No.. Y78
Record No.. 36734-2012
Children’s Athletic Shoes
儿童旅游鞋
ISSUED ON. MAY 24, 2012
IMPLEMENTED ON. NOVEMBER 1, 2012
Issued by. Ministry of Industry and Information Technology of the
People's Republic of China
Table of Contents
1 Scope ... 4 
2 Normative References ... 4 
3 Terms and Definitions ... 5 
4 Product Classification ... 6 
5 Requirements ... 6 
6 Test Methods ... 11 
7 Inspection Items and Qualification Evaluation ... 13 
8 Inspection Rules, Marking, Packaging, Transportation and Storage . 15 
Appendix A (Normative) List of Carcinogenic Aromatic Amines ... 16 
Appendix B (Informative) Quality Judgment for After-sale of Children's
Athletic Shoes ... 17 
Appendix C (Informative) Risks That May Arise During Design and
Production of Children's and Infants' Athletic Shoes ... 19 
Foreword
This standard was drafted according to the rules given in GB/T 1.1-2009.
This standard was proposed by the China National Light Industry Council.
This standard shall be under the jurisdiction of the National Technical Committee on
Shoes of Standardization Administration of China (SAC/TC 305).
Drafting organizations of this standard. China Leather and Footwear Industry
Research Institute, Fujian Nanqi Shoes Industry Co., Ltd, ANTA (China) Co., Ltd.,
Fujian Bang Deng Shoes Industry Co., Ltd, Dr. Health Footcare Children's Shoes
Industry (Beijing) Co., Ltd, Kading (Fujian) Child Product Co., Ltd., Fujian Oumeilong
Sports Goods Co., Ltd, Fujian Nan Hua Shoes Industry Co., Ltd. and Taizhou Feiying
Shoes Co., Ltd.
Chief drafting staffs of this standard. Qi Xiaoxia, Zhang Weijuan, Huang Zhengrong, Li
Su, Hong Jingguo, Chen Yu, Huang Xiuxia, Zeng Zhixi, Chen Zhongxing and Li
Dinghai.
Children’s Athletic Shoes
1 Scope
This standard specifies the product classification, requirements, test methods and
inspection rules as well as marking, packaging, transportation and storage of
children's athletic shoes.
This standard is applicable to ordinary children's athletic shoes and infants' athletic
shoes.
2 Normative References
The following documents are indispensable for the application of this document. For
dated references, only the dated edition applies. For undated references, the latest
edition (including all the amendments) of the normative document applies.
GB/T 251 Textiles - Tests for Color Fastness - Grey Scale for Assessing Staining
GB/T 2703 Technical Terms for Leather Shoes Industry
GB/T 2912.1-2009 Textiles - Determination of Formaldehyde - Part 1. Free and
Hydrolized Formaldehyde (Water Extraction Method)
GB/T 3293 Chinese last Systems
GB/T 3293.1 Shoes Sizes
GB/T 3903.1-2008 Footwear - General Test Methods - Flexing Resistance
GB/T 3903.2-2008 Footwear - General Test Methods - Abrasion Resistance
GB/T 3903.3-20ll Footwear - General Test Methods - Peeling Strength
GB/T 3903.4-2008 Footwear - General Test Methods - Hardness
GB/T 3903.5-2011 Footwear - General Test Methods - Appearance Quality
GB/T 3903.20-2008 Footwear - Test Methods for Accessories. Touch and close
fasteners - Peel Strength before and after Repeated Closing
GB/T 3903.21-2008 Footwear - Test Methods for Accessories. Touch and close
fasteners - Shear Strength before and after Repeated Closing
GB/T 17592-2006 Textiles - Determination of the Banned Azo Colourants
GB/T 19941-2005 Leather and Fur - Chemical Tests - Determination of
Formaldehyde Content
GB/T 19942-2005 Leather and Fur - Chemical Tests - Determination of Banned
Azo Colourants
GB 20400 Leather and Fur - Limit of Harmful Matter
QB/T 1187 Regulations for Acceptance, Labeling, Packaging, Transportation and
Storage
QB/T 2224-2012 Footwear - Test methods for Uppers-low-temperature Flexing
Resistance
QB/T 2673 Footwear - Specification of Marking
QB/T 2882-2007 Footwear - Test Methods for Uppers Linings and Insocks - Colour
Fastness to Rubbing
OB/T 2886-2007 Footwear - Test Methods for Whole Shoe - Upper Sole Adhesion
QB/T 4108-2010 Metal Accessories for Footwear
QB/T 4340-2012 Footwear - Chemical Test Method - Determination of Total Heavy
Metal Content - Inductively Coupled Plasma Atomic Emission Spectrometry
Method
3 Terms and Definitions
For the purpose of this standard, the following terms and definitions as well as those
defined in GB/T 2703 apply.
3.1 Infants’ athletic shoes
Athletic shoes whose sizes are not greater than 170mm and for infants under 3 years
old.
3.2 Children’s athletic shoes
Athletic shoes whose sizes are not greater than 250mm and for children of 3 to 14
years old.
3.3 Primary parts
In the general situation, they refer to the outer side of upper surface, forepart,
Length difference of solid sole in infants' athletic shoes is less than or equal
to 1.5mm, width difference is less than or equal to 1.0mm, thickness
difference is less than or equal to 0.5mm
Length difference of foaming sole in infants' athletic shoes is less than or
equal to 2.5mm, width difference is less than or equal to 2.0mm, thickness
difference is less than or equal to 0.5mm.
6 Back seam deflection Low upper≤2.5mm; other types ≤3.5mm
Suture
[Translator note. Item 7 is
not existed]
Stitches are neat and uniform; stitches in bottom are uniform in elasticity;
primary parts are free from skipped stitching, double stitching, broken
stitching, evagination stitching and split stitching; one skipped stitching or
double stitching is permissible in subsidiary parts, each shoe shall not be
greater than two.
9 Specific function The shoes with flashing or sounding functions shall be complete, cell and wire shall not be exposed and installed firmly.
Note 1.
If the length difference of solid soles in same pair of children's athletic shoes is greater than 3.0, width difference is
greater than 2.5mm, thickness difference is greater than 1.0mm, then they are determined as serious defects.
If the length difference of foaming soles in the same pair of children's athletic shoes is greater than 4.5mm, width
difference is greater than 3.5mm, thickness difference is greater than 1.0mm, then they are determined as serious
defects.
If the length difference of solid soles in the same pair of infants' athletic shoes is larger than 2.5mm, width difference is
greater than 2.0mm, thickness difference is greater than 1.0mm, then they are determined as serious defects.
If the length difference of foaming soles in the same pair of infants' athletic shoes is greater than 3.5mm, width
difference is greater than 2.5 mm, thickness difference is greater than 1.0mm, then they are determined as serious
defects.
Note 2.
If the vamp length difference in the same pair of children's athletic shoes is greater than 5.0mm, difference of back
uppers height in low upper footwear is greater than 4.0mm, height difference of uppers in other type is greater than
6.0mm, then they are determined as serious defects.
If the vamp length difference of the same pair of infants' athletic shoes is greater than 4.0mm, difference of back upper
height in low upper footwear is greater than 3.5mm, height difference of uppers in other types is greater than 5.0mm,
then they are determined as serious defects.
5.3 Physical and mechanical properties
5.3.1 Peel strength of upper sole or that between bottom wall and upper
5.3.1.1 Peel strength is not measured for sewing or bonding children's athletic shoes;
for the rest, it shall be measured.
5.3.1.2 Peel strength of upper sole shall not be less than 40N/cm, peel strength
between bottom wall and upper surface shall not be less than 60N/cm. In peel test, if
the material is torn and the peel layer is not detached, peel strength shall be greater
than 20N/cm.
5.3.2 Flexing resistance of finished shoes
5.3.2.1 Flexing resistance is not measured for infants' athletic shoes. For children's
athletic shoes whose size is less than 230mm and whose thickness of flexing position
in sole is greater than 25mm, their flexing resistance is not measured.
5.3.2.2 Technical indicators of flexing resistance in finished shoes is detailed in
Table 2.
Table 2 Flexing Resistance
Item Indicators
Flexing
resistanc......
Related standard:   QB/T 4329-2012  QB/T 4330-2012
   
 
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