T/CTCA 27-2025 Active Group standards

T/CTCA 27-2025 High-quality antibacterial underwear

Publish Date: 2025-07-21 Implement Date: 2025-08-21 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/CTCA 27-2025

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Drugs used for digestion, the urinary system, and regulating acid-base balance

ICS Name: Textiles

Publish Date: 2025-07-21

Implement Date: 2025-08-21

Scope

This standard specifies the terms and definitions, requirements, test methods, judgment rules, marking, packaging, transportation, and storage for the antibacterial performance evaluation of intimate apparel. This standard applies to intimate apparel such as bras, underpants, T-shirts, sun protection clothing, thermal underwear, lingerie, homewear, shirts, skin clothing, base layers, leggings, swimwear, yoga clothing, shapewear, and socks. Home textile products can refer to this standard for implementation. 1. Definitions and scope: Clarify the scope and objects of the standard, and define and explain high-quality antibacterial and inhibitory rates. 2. Technical requirements: Set requirements from three aspects: basic performance, safety performance, and antibacterial performance. Basic performance must comply with national mandatory standards and relevant product standards; safety performance must comply with GB 18401 (children's products must comply with GB 31701) and not harm human health; antibacterial performance is evaluated according to the 100A antibacterial level, assessing the number of washes and the inhibitory rates of various bacteria, with annotations provided for special cases. 3. Testing: Specifies that the washing method must comply with the relevant provisions of GB/T 20944.3—2008, and clarifies the standard strains used in the test. The inhibitory rate test method also follows GB/T 20944.3—2008, ensuring the standardization of the test and the reliability of the results. 4. Judgment rules: Adopt the principle of full-item pass/fail judgment, i.e., the product is deemed to be qualified if it meets all the standard requirements, and it is deemed to be unqualified if even one requirement is not met, ensuring the seriousness of standard implementation.