This standard specifies the terms and definitions, specifications, requirements, testing, judgment rules, product instructions, packaging, transportation, and storage of knitted swimming caps. This standard is applicable to identifying the quality of swimming cap products made of knitted 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/T2910 (All Parts) Quantitative Chemical Analysis of Textiles GB/T2912.1 Determination of Formaldehyde in Textiles Part 1: Free and Hydrolyzed Formaldehyde (Water Extraction Method) GB/T3920 Textiles - Tests for Color Fastness to Rubbing (GB/T3921-2008) - Tests for Color Fastness to Soap (GB/T3922) - Test Methods for Color Fastness to Sweat (GB/T4856) - Packaging of Cotton Knitted Fabrics (GB5296.4) - Instructions for the Use of Consumer Goods - Part 4: Textiles and Clothing (GB/T5713) - Tests for Color Fastness to Water (GB/T5714) - Tests for Color Fastness to Sea Water (GB/T7573) - Determination of pH Value of Water Extract (GB/T8170) Representation and Determination of Limit Values GB/T8427-2008 Textiles - Tests for Color Fastness to Artificial Light - Color Fastness to Xenon Arc GB/T8433 Textiles - Color Fastness to Chlorinated Water (Swimming Pool Water) GB/T8878 Cotton Knitted Underwear GB9994 Common Moisture Return of Textile Materials GB/T17592 Determination of Prohibited Azo Dyes for Textiles GB18401 National Basic Safety Technical Specification for Textile Products GB/T29862 Identification of Fiber Content for Textiles FZ/T01026 Quantitative Chemical Analysis of Four Component Fiber Mixtures FZ/T01057 (All Parts) Test Method for Fiber Identification of Textiles FZ/T01095 Test Method for Fiber Content of Spandex Products FZ/T70006 Test Method for Tensile Elastic Recovery of Knitted Fabrics GSB16-2159 Standard Depth Sample Card for Knitted Products (1/12) GSB16-2500 Color Sample for Surface Defects of Knitted Fabrics

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