OEKO-TEX Standard 100: OEKO-TEX Standard 100 (OEKO-TEX 认证)
An independent certification for textile products tested for harmful substances. Zippers are assessed as accessories and must meet limits for substances such as formaldehyde, heavy metals, azo dyes and pesticide residues, depending on the product class. Certification supports brand claims and retailer requirements. Test reports cover trims, tapes, threads and coatings, and renewal is needed when materials or suppliers change. Buyers should confirm the certificate scope and validity date.