We provide standard testing services for sock products to the textile industry, supporting sock manufacturers and retailers in enhancing product compliance, reducing penalties from market regulatory authorities, and lowering customer complaints rates.
Applicable Products
FZ/T 73001-2016 Socks
FZ/T 73037-2019 Knitted Sports Socks
FZ/T 73025-2019 Knitted Apparel for Infants
GB/T 33271-2016 Woven Apparel for Infants
Key Requirements for Sock
Standard | Key Requirements |
FZ/T 73001-2016 Socks |
- Appearance quality - Fiber content - Labeling compliance - Full compliance with GB 18401 - Color fastness (Wet rubbing resistance, Soap washing resistance) - Horizontal extension value - Vertical extension value |
FZ/T 73037-2019 Knitted Sports Socks |
- Appearance quality - Fiber content - Labeling compliance - Full compliance with GB 18401 - Color fastness (Wet rubbing resistance, Soap washing resistance) - Horizontal extension value - Vertical extension value - Bursting strength - Antibacterial efficacy (if claimed) |
FZ/T 73025-2019 Knitted Apparel for Infants |
- Appearance quality - Labeling compliance - Fiber content - Compliance with GB 31701 Class A - Filling material: Down content, Deviation from labeled down content, Down cluster content, Fill power, Oxygen consumption, Residual ester rate, Cleanliness, Odor, Microbial safety - Extractable heavy metal content - Washing dimensional change rate - Pilling resistance - Garment strap tensile strength - Post-wash appearance - Moisture permeability rate - Down penetration resistance - Color fastness (Soap washing resistance, transfer in joints) |
GB/T 33271-2016 Woven Apparel for Infants |
- Appearance quality - Cord and drawstring safety (GB/T 22702/22705) - Labeling compliance - Fiber content - Full compliance with GB 31701 - Washing dimensional change rate - Strap tensile strength - Extractable heavy metal content - Fabric color fastness (Soap washing resistance) |