Scope

This standard specifies the terms and definitions, product identification, technical requirements, test methods, inspection rules and markings, packaging, transportation, and storage requirements for acid dye easily dyed spandex filament This standard is applicable to acid dyes with a linear density of 15.0 dtex to 933.0 dtex that are easily dyed with spandex filaments. Other specifications of acid dyes that are easy to dye spandex filaments can be used as reference The following documents 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 2828.1-2012 Sampling Procedures for Inspection by Attributes, Part 1: Sampling Plans for Batch Inspection Retrieved by Acceptance Quality Limit (AQL)

GB/T 3291.1 Textile and Textile Materials - Performance and Testing Terminology - Part 1: Fibers and Yarns

GB/T 3291.3 Textile and Textile Materials - Performance and Testing Terminology - Part 3: General

GB/T 4146 (All Parts) Textile chemical fibers)

GB/T 6502 Sampling methods for chemical fiber filaments

GB/T 6504 Test method for oil content of chemical fibers

GB/T 6505- Test method for thermal shrinkage of chemical fiber filaments (after treatment)

GB/T 8170-2008 Rules for rounding off numerical values and representation and determination of limit values

FZ/T 50005 Test Method for Linear Density of Spandex Filament

FZ/T 50006 Test Method for Tensile Properties of Spandex Filament

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