This document specifies the terms and definitions, specifications, requirements, test methods, judgment rules, product labeling, packaging, transportation, and storage of three-dimensional formed knitted sock shaped shoe uppers. This document is applicable to three-dimensional formed knitted sock type shoe uppers produced by weaving textile fibers as the main raw material on a circular knitting machine. This document is not applicable to infants and young children aged 36 months and below. Normative References The content of the following documents constitutes an essential clause of this document through normative references in the text. Among them, for dated reference documents, only the version corresponding to that date applies to this document: for undated reference documents, the latest version (including all modification orders) applies to this document. GB/T 250 Textiles - Assessment of Color Fastness - Grey Sample Card for Discoloration GB/T 2910 (All Parts) - Quantitative Chemical Analysis of Textiles GB/T 2912.1- Determination of Formaldehyde in Textiles - Part 1: Free and Hydrolyzed Formaldehyde (Permanent Extraction Method) GB/T 3293.1 Shoe Size GB/T 3903.16-2008 Footwear Upper, Lining, and Inner Cushion Test Methods - Wear Resistance GB/T 3903.42 Footwear Upper Test methods for lining and lining - Color migration GB/T 3920 Textiles - Color fastness tests - Color fastness to rubbing GB/T 3921-2008 Textiles - Color fastness tests - Color fastness to soaping GB/T 3922 Textiles - Color fastness tests - Color fastness to perspiration GB/T 4856 Packaging of cotton fabrics GB/T 5713 Textiles - Color fastness tests - Color fastness to water GB/T 7573 Textiles - Determination of pH value of aqueous extract GB/T 17592 Textiles - Determination of prohibited azo dyes GB18401 National Basic safety standards for textile products Full technical specification GB/T 29778 Textiles - Color fastness test. Evaluation of Potential Phenol Yellowing Microdisclosure GB/T 29862 Identification of Fiber Content in Textiles GB31701 Safety Technical Specifications for Textile Products for Infants and Children GB/T 38015- Quantitative Chemical Analysis of Textiles - Mixtures of Spandex and Certain Other Fibers FZ/T 01026- Quantitative Chemical Analysis of Textiles - Multicomponent Fiber and Vitamin Mixtures FZ/T 01057 (All Parts) Test Method for Identification of Textile Fibers aHG/T3689-2014 Test Method for Yellowing Resistance of Footwear QB/T2881-2013 Technical Conditions for Antibacterial Performance of Footwear and Footwear Components QB/T4548-2013 Golf Shoes GSB16-2159 Knitted Product Standard Depth Sample Card (1/12)
1. Project bidding: Issue authoritative third-party CMA/CNAS qualification report
2. Online e-commerce platform entry: Quality inspection report recognized by major e-commerce platforms 3. Used as a sales report: issuing legally effective testing reports to make consumers more confident 4. Papers and research: Provide professional personalized testing needs 5. Judicial services: providing scientific, fair, and accurate testing data 6. Industrial problem diagnosis: Verify the troubleshooting and correction of industrial production problems1. Telephone communication and confirmation of requirements
2. Recommend solutions and confirm quotations 3. Mail samples and arrange testing 4. Progress tracking and result feedback 5. Provide reports and after-sales service 6. If urgent or priority processing is required1. The testing industry is fully covered, meeting different testing needs
2. Fully cover the laboratory and allocate localized testing nearby3. Engineers provide one-on-one services to make testing more accurate
4. Free initial testing, with no testing fees charged
5. Self service order delivery for free on-site sampling
6. Short cycle, low cost, and attentive service 7. Possess authoritative qualifications such as CMA, CNAS, CAL, etc 8. The testing report is authoritative and effective, and is generally used in ChinaNumber