This standard applies to identify the quality of knitted underwear with a chemical fiber content of not less than 50%. It does not apply to clothing for infants and young children aged 36 months and below.
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Service Scope
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Service Content
I. Test items and methods✓ Top breaking strength GB/T 19976-2005
✓ Fiber analysis FZ/T 01057, GB/T 2910, FZ/T 01026
✓ Formaldehyde GB/T 2912.1
✓ PH GB/T 7573
✓ Odor GB 18401-2010
✓ Azo GB/T 17592
✓ Washing dimensional stability GB/T 8878-2014 Regulation 5.1.2.7
✓ Color fastness to soap washing GB/T 3921-2008
✓ Color fastness to water GB/T 5713
✓ Color fastness to perspiration GB/T 3922
✓ Color fastness to rubbing GB/T 3920
✓ Pilling GB/T 4802.1-2008II. Precautions1.Requirements are divided into two aspects: internal quality and appearance quality. Internal quality includes indicators such as top breaking strength, fiber content, formaldehyde content, pH value, odor, decomposable carcinogenic aromatic amine dyes, wash size change rate, color fastness to soap, color fastness to water, color fastness to perspiration, color fastness to friction, and pilling. Appearance quality includes indicators such as surface blemishes, specification size deviation, difference in the dimensions of symmetrical parts, and sewing specification.
2.Product standards have become one of the most important bases for domestic textile products prior to entering the market. Business owners, distributors, and manufacturers have monitored and evaluated the quality of their products before market entry to ensure product compliance and thereby reduce and avoid the risk of product recalls or complaints.







