This standard specifies the terms and definitions, product classification, models, requirements, testing, sampling rules, judgment rules, and instructions for use, packaging, transportation, and storage of knitted fabric breast patches. This standard is applicable to knitted fabric chest patches. The following normative references are essential for the application of this document. For dated references, only the version with issue 8 applies to this document. For undated references, the latest version (including all modification orders) applies to this document. GB/T 250 Textiles - Evaluation of Color Fastness - Grey Sample Card for Discoloration - GB/T 251 Textiles - Evaluation of Color Fastness - Grey Sample Card for Staining - 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 (Water Extraction Method) GB/T 3920 Textiles - Tests for Color Fastness - Color Fastness to Rubbing - GB/T 3921-2008 Textiles - Tests for Color Fastness to Soap - GB/T 3922-2013 Textiles - Tests for Color Fastness - Color Fastness to Sweat - GB/T 4802.1-2008 Textiles - Determination of Pilling and Pilling Properties of Fabrics - Part 1: Circular Path Method - GB/T 4856 Packaging of Cotton Knitted Fabrics - GB/T 5296.4 Instructions for Use of Consumer Goods - Part 4: Textiles and Clothing - GB/T 5713 Textiles - Color Fastness to Water - GB/T 6151 Textiles General rules for color fastness testing GB/T 6682 Specification and test methods for analytical laboratory water. GB/T 7573 Determination of pH value of textile aqueous extracts GB/T 8170 Rules for rounding off values and representation and determination of limit values GB/T 8629-2017 Household washing and drying procedures for textile testing GB/T 17592 Determination of prohibited azo dyes GB/T 17593 (all parts) Determination of Heavy Metals in Textiles GB18401 National Technical Specifications for Basic Safety of Textile Products GB/T 20388 Textiles - Determination of Phthalate Esters - Tetrahydrofuran Method GB/T 24121 Testing Methods for Broken Needle Residues in Textile Products GB/T 29862 Identification of Fiber Content in Textiles GB/T 30157 Determination of Total Lead and Total Cadmium Content in Textiles GB/T 31127-2014 Textiles - Color Fastness Tests - Splicing and Mutual Dyeing Fastness GB31701-2015 Safety Techniques for Textile Products for Infants and Children Specification GB/T 31702 Test Method for Sharpness of Textile Accessories GB/T 32598 Test Methods for Color Fastness of Textiles GB/T 32598 Instrumental Rating of Staining on Interlining Fabrics GB/T 32616 Test Methods for Color Fastness of Textiles - Instrumental Rating of Discoloration of Test Specimens

Function of testing report:

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 problems

100% inspection and testing process:

1. 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 required

Testing and testing characteristics:

1. The testing industry is fully covered, meeting different testing needs

2. Fully cover the laboratory and allocate localized testing nearby

3. 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 China