This standard specifies the technical requirements and test methods for acrylic knitted underwear This standard is applicable to the quality evaluation of nylon knitted underwear. Acrylic fiber blended and interwoven knitted underwear can be referred to for implementation

2 Referenced Standards

The provisions contained in the following standards constitute the provisions of this standard by reference in this standard.

. At the time of publication of this standard, all versions shown are valid. All standards will be revised, and parties using this standard should explore the possibility of using the latest versions of the following standards

GB 250-84 Grey Sample Card for Evaluating Discoloration

GB 251-84 Grey Sample Card for Evaluating Staining

GB 3920-83 Textiles - Test Method for Color Fastness to Rubbing

GB 3921-83 Textiles - Test Method for Color Fastness to Washing

GB 3922-83 Textiles - Test Method for Color Fastness to Sweat

GB/T 4856-93 Packaging of Cotton 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