Antimicrobial Standard Revision Accelerates: Absorption Method Under Review, Textile Functional Evaluation System Enters a New Cycle

A national standard implemented for nearly 20 years is undergoing systematic renovation. The revision plan newly issued in June 2025 (plan number 20251603-T-608) has entered the review stage, meaning the evaluation logic for antibacterial textiles from lab to market is about to be updated. For procurement and brand sides, this is not just a technical document change but may reshape the underlying rules of product compliance and promotion.\n\n## Background and Progress of Standard Revision\n\nThe current GB/T 20944 series consists of three parts: Parts 1 and 2 were published in 2007, and Part 3 in 2008. Over the past two decades, antibacterial technology has evolved from simple silver ion finishing to photocatalytic, microcapsule, and natural extract approaches, with applications expanding from underwear and socks to home textiles, sportswear, and medical textiles. The original test strains, culture conditions, and result determination methods have shown insufficient adaptability to new antibacterial materials.\n\nThe revision adopts a phased strategy. The task for Part 3 (shaking flask method) was assigned in June 2024 (plan number 20241952-T-608), and it has now completed revision and is in the approval stage, and will fully replace GB/T 20944.3-2008 after publication. The task for Part 2 (absorption method) was assigned in June 2025 (plan number 20251603-T-608). The review meeting held in Zhejiang marks a significant milestone; after publication, it will fully replace GB/T 20944.2-2007.\n\nNotably, the drafting units for both standards cover testing institutions, research institutes, brand enterprises, and new material companies, reflecting broad industry participation. For upstream auxiliary and fabric enterprises, once the new standards are implemented, existing product test reports may need to be re-issued, directly affecting order cycles and cost accounting.\n\n## Industrial Impact and Underlying Logic\n\nFrom an industrial perspective, the direct driver for revision is the mismatch between testing technology upgrades and the emergence of new materials. The absorption method is mainly applicable to water-absorbent textiles such as towels, underwear, and bedding, while the shaking flask method is more suitable for non-absorbent materials. With increasing blended and composite fabrics, the original methods show deviations in sample preparation and result repeatability, so the revised methods are expected to improve data consistency and comparability.\n\nFor enterprises, standard changes mean adjustments in two aspects: first, R&D needs to adjust antibacterial finishing processes according to the new methods to ensure products pass stricter testing; second, marketing must issue test reports based on the new standards to avoid being deemed false advertising for citing obsolete standards. In recent years, market regulators have intensified sampling inspections of functional textiles, and non-compliant antibacterial labeling has become a high-risk area for penalties. The implementation of new standards will provide clearer technical basis for supervision.\n\nFrom the consumer perspective, antibacterial performance is a typical "credence good" attribute—consumers cannot judge its authenticity through senses. Due to lagging standards, some enterprises exploited testing method loopholes for exaggerated claims, damaging industry credibility. The new standards, by enhancing testing scientificity, help filter out products with genuine antibacterial function, which in turn forces enterprises to reduce concept hype and invest in actual technological improvement.\n\n## Practical Recommendations\n\n### For Procurement\n- Pay attention to the release of new standards, and explicitly cite the latest versions of GB/T 20944.2 and GB/T 20944.3 in procurement contracts to avoid acceptance disputes due to version mismatches.\n- Require suppliers to provide test reports based on the new standards, and verify that testing institutions have CMA/CNAS qualifications to prevent use of outdated reports.\n\n### For Foreign Trade Enterprises\n- Assess regulatory requirements for antibacterial performance in export target markets, such as the EU Biocidal Products Regulation (BPR) and US EPA regulations, to ensure products under the new standards also meet international compliance.\n- Maintain communication with testing institutions to understand the transition arrangements between old and new standards, and arrange testing schedules reasonably to avoid order delays due to standard switching.