This standard specifies the product classification, marking, requirements, testing methods, inspection rules and markings, packaging, transportation, and storage of linen and cotton blended color spun yarn. This standard is applicable to ring spun linen< Blended color spun yarn with bleached linen and cotton. The following normative references are essential for the application of this sub document. For dated references, only the dated version applies to this document. For undated references, the latest version (including all amendments) applies to this document. GB/T 2543.2 Textiles - Determination of Yarn Twist - Part 2: Untwist and Twist Method - GB/T 3292.1 Textiles - Test Method for Dry and Uncooked Yarns - Part 1:, GB/T 3916 Determination of Breaking Strength and Elongation at Break of Single Yarn, Wrapped Yarn, and Single Yarn by Capacitor Discharge (CRE Method) GB/T 392O Textiles - Tests for Color Fastness to Rubbing (GB/T 3921-20o8) - Tests for Color Fastness to Soap (GB/T 4743-200) - Determination of Linear Density of Wrapped Yarn and Dumpling Yarn (GB/T 9904) - Common Moisture regain of Textile Materials (GB/T 18401) - National Basic Safety Technical Specifications for Textile Products (GB/T 29862) - Identification of Fiber Content in Textiles (FZ/T 10008) - Cotton and Chemical Fiber Pure Spinning, Marking and Packaging of Blended Yarns FZ/T 10021 Color Spinning Yarn Inspection Rules FZ/T 30003 Quantitative Analysis Method for Linen Cotton Blended Products Microscopic Projection Method 3 Product Classification, Marking 3.1 Classification of Linen and Cotton Blended Color Spinning Yarn Products Classification is based on color, fiber blending ratio, and linear density

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