The antimicrobial textile industry is undergoing a standard overhaul. The review meeting for the national standard "Textiles - Evaluation of Antibacterial Activity - Part 2: Absorption Method" was held in Zhejiang, marking a major step in the revision of the GB/T 20944 series. Meanwhile, Part 3 (Shake Flask Method) has been completed and is now in the approval stage. For buyers and manufacturers, this signals a fundamental shift in how antibacterial performance will be verified and marketed.
Background
The current GB/T 20944 series, issued between 2007 and 2008, consists of three parts: agar diffusion, absorption, and shake flask methods. Over nearly two decades, the application of antibacterial technology has expanded from underwear and socks to sportswear, medical textiles, and home furnishings. New materials and processes have emerged, but the testing methods have lagged behind. The urgency of revision stems from the fact that old methods are no longer sensitive or applicable to many new antibacterial agents, leaving room for misleading claims.
The absorption method review is a key milestone. Its revision task was assigned in June 2025 (project no. 20251603-T-608), while the shake flask method revision started in June 2024 (project no. 20241952-T-608) and has already been completed. Once published, these two standards will completely replace GB/T 20944.2-2007 and GB/T 20944.3-2008 respectively. The drafting teams include testing institutions, research institutes, brand companies, and new material suppliers, reflecting broad industry consensus.
Industry Impact
The immediate effect of the revision is a higher testing bar. For factories, this means the "pass line" for antibacterial performance may rise, and products that relied on vague labeling or concept-based marketing will face greater compliance pressure. For buyers, the new standard provides a more reliable basis for acceptance testing, reducing disputes over product quality—especially in cross-border trade where antibacterial test results are often a key acceptance criterion.
A deeper impact is market reshuffling. The rapid growth of antibacterial textiles has been accompanied by an overuse of the "antibacterial" label, with some companies exaggerating claims or selling substandard goods. The revised standard, by improving the scientific rigor and applicability of test methods, effectively creates a technical barrier that filters out non-compliant players. Companies that have invested in genuine antibacterial technology will benefit from a fairer competitive environment, while those relying on superficial claims may be pushed out.
The revision also sends a policy signal: the state is using standardization to steer the antibacterial textile industry from "concept-driven" to "technology-driven." This will have ripple effects across the supply chain—from the selection of antibacterial agents to the optimization of finishing processes and the rising cost of testing—all of which must be recalculated by upstream suppliers, midstream processors, and downstream brands.