OEKO-TEX Standard 100 Test Methods and Acceptable Limits
OEKO-TEX Standard 100 is verified through annual laboratory testing and audit. Knowing how the method works avoids rejecting fabric that actually meets the requirement.
Method overview
annual laboratory testing and audit defines sample size, conditioning and calculation, so values are comparable only within the same revision. 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.
Result interpretation
Read the value together with construction notes; four product classes is only meaningful for similar fabrics. 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.
Typical limits
Buyers commonly write four product classes with a stated tolerance, then verify against 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.
Sources of variation
Conditioning time, operator technique and shade all influence the result. 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.
Documentation
Record the standard revision on every report, because older versions can differ from current practice. 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.
