Scope

This standard specifies the product classification, size, requirements, test methods, judgment rules, product usage instructions, packaging, transportation, and storage of soybean protein composite fiber knitted underwear This standard is applicable to the identification of the quality of knitted underwear with a soybean protein composite fiber content greater than 30% or more

Normative References

The clauses in the following documents become clauses of this standard through reference in this standard.

. For dated reference documents, all subsequent amendments (excluding corrected content) or revisions are not applicable to this standard. However, parties to agreements based on this standard are encouraged to study whether the latest versions of these documents can be used. For undated references, the latest version applies to this standard

GB/T 250 Textiles, Color Fastness Tests, Grey Sample Cards for Evaluating Discoloration (GB/T 250-2008, ISO 105-A021993, IDT)

GB/T 251 Textiles, Color Fastness Tests, Grey Sample Cards for Evaluating Staining (GB/T 251-2008, ISO 105-A031993, IDT)

GB/T 1335.1 Clothing Size Types for Men GB/T 1335.2 Clothing Size Types for Women GB/T 1335.3 Clothing Size Types for Children

GB/T 2910 (All Parts) Quantitative Chemical Analysis of Textiles

GB/T 2912.1- Determination of Textiles and Formaldehyde - Part 1: Free and Hydrolyzed Formaldehyde (Water Extraction Method)

GB/T 3920 Textiles, Color Fastness Tests - Color Fastness to Rubbing (GB/T 3920-1997.eqv ISO 105-X12:1993)

GB/T 3921 Textiles, Color Fastness Tests - Color Fastness to Soap (GB/T 3921-2008, ISO 105-C10:2006, MOD)

GB/T 3922 Textiles, Color Fastness to Sweat Test Method (GB/T 3922-1995, eqv ISO 105-E041994)

GB/T 4856 Packaging of Cotton Knitted Fabrics

GB 5296.4 Instructions for Use of Consumer Goods

GB/T 5713 Textiles, Color Fastness Tests, Color Fastness to Water (GB/T 5713-1997, eqv ISO 105-E011994)

GB/T 6411 Cotton Knitted Underwear Specification and Size Series

GB/T 7573 Textiles - Determination of pH Value of Water Extraction Solution

GB/T 8170 Rules for Rounding off Values and Representation and Judgment of Limit Values

GB/T 8629 Textiles, Household Washing and Drying Procedures for Testing (GB/T 8629-2001. eqv ISO 6330:2000)

GB/T 14801 Test Methods for Weft Inclination and Bow Weft of Machine and Knitted Fabrics

GB/T 17592 Textiles - Determination of Prohibited Azo Dyes

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