The phrase "antibacterial" on sanitary pad packaging is no longer just a marketing slogan; the industry is redefining it with more rigorous test methods. In August 2026, the group standard T/CIAA 008—2026 for antimicrobial sanitary pads, pantyliners, and period pants was officially released, replacing the 2020 version. The most significant change is not a simple version bump but the introduction of a "long-lasting antimicrobial" definition and corresponding test method—meaning products must retain antibacterial activity after simulated use, raising the bar for formulation design and quality control.
Core Changes in the Standard
The revision was coordinated by the Zhongguancun Huizhi Antimicrobial New Material Industry Technology Innovation Alliance, with drafting contributions from Henan Shulai Hygiene Products, Guangdong Institute of Microbiology (Guangdong Microbial Analysis and Testing Center), SGS-CSTC Standards Technical Services (Shanghai), and Jinda Nano Technology (Xiamen). Compared with the 2020 edition, the new standard revises definitions, requirements, and test methods. The most visible change is the expansion of the product name from "bacteriostatic sanitary pads (pantyliners)" to "antimicrobial (bacteriostatic) sanitary pads, pantyliners, and period pants," covering the rapidly growing period pants category.
The newly added definition of "long-lasting antimicrobial (bacteriostatic)" is the technical core of this revision. According to the standard, long-lasting efficacy means that after adding bovine serum albumin to the skin-contact layer and placing it at (36±1)°C for no less than 8 hours—simulating actual use—the product still exhibits antimicrobial activity. This test condition mimics body temperature and real wearing duration, bringing the evaluation closer to real-world scenarios than traditional direct inoculation methods. Products that were effective only before use will likely fail the new requirement.
The requirements section fully aligns with GB 15979-2024, adjusting antimicrobial performance, bacteriostatic performance, stability, and toxicology indicators, while adding a long-lasting antimicrobial performance requirement. Test methods have been updated accordingly, including a new procedure for long-lasting efficacy. These changes indicate that the group standard is moving toward higher hygiene and safety levels rather than merely meeting baseline national standards.
Industry Impact and Transmission
For upstream raw material suppliers, the new standard directly raises the selection threshold for antimicrobial agents. The bovine serum albumin simulation test requires that antimicrobial components remain effective in the presence of organic matter, which rules out some soluble antimicrobials that act quickly but not durably. Long-lasting materials such as nano-zinc and nano-silver may gain more application opportunities, but the balance between efficacy and cost remains critical. Suppliers need to provide more comprehensive durability data or risk being excluded from brand procurement lists.
For sanitary pad manufacturers, the standard upgrade means increased testing costs and longer R&D cycles. The new long-lasting test requires additional equipment and manpower, putting more pressure on smaller producers. However, this also creates an opportunity for differentiation—products that pass the new standard can build a credible "truly antibacterial" reputation in channels and among consumers. Brands that claim antibacterial properties will need the new standard as technical backing to avoid misleading advertising disputes.
For buyers and distributors, the new standard provides a clearer screening basis. In the past, antibacterial test reports from different brands were difficult to compare. Now, checking for T/CIAA 008—2026 compliance offers a preliminary indication of a product's antibacterial durability. Especially in e-commerce and social commerce, consumers are highly sensitive to terms like "sterilization" and "bacteriostatic," making compliance labels a key trust factor.