Scope

This standard specifies the size, requirements, testing, judgment rules, product usage instructions, packaging, transportation, and storage of knitted T-shirts This standard is applicable to identifying the quality of various types of knitted T-shirts This standard does not apply to clothing for infants and young children aged 36 months and below

Normative references

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 250 Textiles - Evaluation of Color Fastness - Grey Sample Card for Discoloration

GB/T 251 Textiles - Evaluation of Color Fastness - Grey Sample Card for Staining

GB/T 1335 (All Parts) - Clothing Size

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

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

GB/T 3920 Textiles - Tests for Color Fastness to Rubbing

GB/T 3921-2008 Textiles - Tests for Color Fastness to Soap

GB/T 3922 Textiles - Tests for Color Fastness to Sweat

GB/T 4802.1-2008 Textiles - Determination of Pilling and Pilling Properties of Fabrics - Part 1: Circular Path Method

GB/T 4802.3 Textiles - Determination of Pilling and Pilling Properties of Fabrics - Part 3: Pilling Box Method

GB/T 4856 Packaging of Cotton Knitted Fabrics

GB5296.4 Instructions for the Use of Consumer Goods - Part 4: Textiles and Clothing

GB/T 5713 Textiles - Tests for Color Fastness to Water

GB/T 6529 Textiles - Standard Atmosphere for Humidity Control and Testing

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

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

GB/T 8427-2008 Textiles - Color Fastness Tests - Color Fastness to Artificial Light: Tritium Arc

GB/T 8629-2001 Textiles - Household Use for Testing Washing and Drying Procedures

GB/T 8878 Cotton Knitted Underwear

GB9994 Standard Moisture Return of Textile Materials

GB/T 14576 Textiles - Color Fastness Tests - Light Fastness Color Fastness to Sweat Composite

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

GB/T 17592 Textiles - Determination of Prohibited Azo Ammonia Dyes

GB18401 National Basic Safety Technical Specification for Textile Products

GB/T 19976-2005 Textiles - Determination of Breaking Strength - Steel Ball Method

GB/T 29862 Textiles - Identification of Fiber Content

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