This standard specifies the product varieties, specifications, technical requirements, test methods, inspection rules, markings, and packaging of knitted cotton natural color yarn (hereinafter referred to as "knitted cotton yarn") This standard is applicable to the evaluation of the quality of ring spindle mechanism knitted cotton yarn

2 Referenced Standards

GB 2543-81 Twist Test Method

GB 3292-82 Electronic Uniformity Tester Determination of Short Fragment Unevenness of Yarn

GB 3916-83 Single Yarn Breaking Strength and Elongation Test Method

GB 4145-84 Yarn Defect Grading Test Method

GB 4743-84 Yarn Linear Density (or Count) Determination Method - Twist Yarn Method

FZ/T 10007-93 Cotton and Chemical Fiber Pure Spinning,

Inspection Rules for Blended Natural Yarn

ZB W04 006 Correction Method for Breaking Strength of Cotton and Chemical Fiber Pure and Blended Products at 1-89 Temperature and Moisture regain

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