Q: What does OEKO-TEX Standard 100 test on zipper components?
The standard tests for substances that are harmful or suspected of being harmful in the finished article. Typical parameters are pH, formaldehyde, extractable heavy metals, azo colourants, allergy-inducing dyestuffs, chlorinated benzenes and phenols, phthalates, polycyclic aromatic hydrocarbons, organotin compounds, per- and polyfluoroalkyl substances and residual surfactants. Which parameters apply, and at what limit, depends on the product class.
For a zipper the testing splits by material. Dyed tape carries the colourant-related parameters and the pH and formaldehyde checks; polymer teeth carry plasticiser and residual monomer checks; metal hardware is assessed for extractable heavy metals. Sample preparation matters, so submit the finished article in the colours and finishes you sell, not a white laboratory strip.
Acceptance means every applicable parameter in the appendix for that product class is met. Where a limit or a test method is disputed, refer to the standard text rather than to a summary. Keep test reports keyed to the certificate so a customer query can be answered with the actual parameter rather than a general assurance.