This standard specifies the requirements, inspection methods, inspection rules, marking, packaging, transportation, and storage for sewing hats. This standard applies to sewn hats produced mainly from textile woven fabrics. The following normative references are essential for the application of this document. For dated references, only the dated version applies to this document. For undated references, 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 3921-2008 Textiles - Color Fastness Tests - Color Fastness to Soap (GB/T 4841.3) - Dye Dyeing Standard Depth Color Card 2/1.1/3.1/6.1/12.1/25GB5296.4- Instructions for the Use of Consumer Goods - Part 4: Textiles and Clothing GB/T 8427-2008 Textiles - Color Fastness Tests - Color Fastness to Artificial Light - Xenon Arc GB/T 8629-2001- Household Washing and Drying Procedures for Textiles - GB/T 8630- After Washing and Drying Determination of Dimensional Changes GB18401 National Basic Safety Technical Specifications for Textile Products GB/T 21294 Inspection Methods for Physical and Chemical Properties of Clothing GB/T 21295 Technical Requirements for Physical and Chemical Properties of Clothing GB/T 29862 Identification of Fiber Content in Textiles GB/T 33271 Woven Infant and Toddler Clothing FZ/T 80002 Clothing Marking, Packaging Transportation and Storage FZ/T 80004 Rules for Factory Inspection of Finished Clothing Products FZ/T 80007.3 Test Method for Dry Cleaning Resistance of Clothing Using Adhesive Lining FZ/T 80010 Method for Measuring Human Head Circumference and Labeling of Hat Specifications for Clothing

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