1 Scope

This standard specifies the terms and definitions, product size, requirements, test methods, judgment rules, product instructions, packaging, transportation, and storage of flocculent knitted thermal underwear.

This standard is applicable to wadded knitted thermal underwear products with a insulation rate of 45% or above Not suitable for infants and young children aged 36 months and below

2 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 1335 (All Parts) Clothing Sizes

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 4856 Packaging of Cotton Knitted Fabrics

GB/T 5296.4 Instructions for Use of Consumer Goods - Part 4: Textiles and Clothing

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

GB/T 6411 Knitted Underwear Size Series

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

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

GB/T8629-2017 Textiles - Household Washing and Drying Procedures for Testing Textiles

GB/T 8878 Cotton Knitted Underwear

GB/T 12704.1-2009 Textiles - Part 1: Moisture Absorption Method

GB/T16988 Special Purpose GB/T17592 Textiles - Determination of Content of Mixtures of Animal Fiber and Sheep Wool

GB/T17592- Determination of Prohibited Azoamine Dyes GB 18401 National Basic Safety Technical Specifications for Textile Products

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