This standard specifies the specifications, requirements, test methods, acceptance rules, packaging, marking, transportation, and storage of airflow spun linen cotton blended natural color yarn (hereinafter referred to as airflow spun linen cotton blended yarn) with a linen content of 50% or more. This standard is applicable to the identification of the quality of air spun hemp cotton blended yarn and serves as a unified regulation for handover acceptance. 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 - Evaluation of Color Fastness - Grey Sample Card for Discoloration - GB/T 3292.1 Textiles - Test Method for Uneven Yarns - Part 1: Capacitance Method - GB/T 3916 Textiles - Determination of Single Yarn Breaking Strength and Elongation at Break - GB/T4743 Textiles - Determination of Linear Density by Yarn Twisting Method - GB/T 5296.4 Instructions for Use of Consumer Goods - Instructions for Use of Textiles and Clothing - FZ/TO1053 Textiles - Identification of Fiber Content - SN/T 0756 for Import and Export of Hemp/Cotton Blended Products Quantitative analysis method Fiber projection method

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