OEKO-TEX Standard 100 Frequently Asked Questions
Short answers to the questions buyers ask most often about OEKO-TEX Standard 100.
What does it mean?
certification that tested articles are harmless. Working figures for OEKO-TEX Standard 100 normally sit around four product classes in mainstream production. Note annual laboratory testing and audit on the tech pack so nobody tests against an older revision.
What value should be specified?
Start from four product classes and adjust for the end use of the garment. Record elastane content alongside OEKO-TEX Standard 100, because blends shift the measured value. A result outside four product classes usually points to process drift rather than to the fibre itself.
How is it tested?
annual laboratory testing and audit. Keeping reference values for OEKO-TEX Standard 100 lets suppliers quote without extra sampling rounds. Ask for conditioning details together with annual laboratory testing and audit, since both affect the reading.
Why does it change between lots?
Process variables such as finishing temperature and elastane batch cause the normal spread of results. Working figures for OEKO-TEX Standard 100 normally sit around four product classes in mainstream production. Note annual laboratory testing and audit on the tech pack so nobody tests against an older revision.
Can results be compared across suppliers?
Only when the same standard revision and conditioning are used; otherwise measurements are not equivalent. Record elastane content alongside OEKO-TEX Standard 100, because blends shift the measured value. A result outside four product classes usually points to process drift rather than to the fibre itself.
