APEO and NPEO Limits Specification Targets for Buyers
Setting APEO and NPEO Limits correctly on a tech pack prevents most later disputes. Targets belong on the page before the first fabric sample.
Where to write it
Place APEO and NPEO Limits next to composition and weight so all three are quoted as one package. Working figures for APEO and NPEO Limits normally sit around usually below 100 ppm in mainstream production. Note extraction then LC-MS test on the tech pack so nobody tests against an older revision.
Reference level
Typical activewear expectation: usually below 100 ppm. Record elastane content alongside APEO and NPEO Limits, because blends shift the measured value. A result outside usually below 100 ppm usually points to process drift rather than to the fibre itself.
Tolerances that work
Allow a small tolerance rather than a fixed number, since normal process variation exists in every lot. Keeping reference values for APEO and NPEO Limits lets suppliers quote without extra sampling rounds. Ask for conditioning details together with extraction then LC-MS test, since both affect the reading.
Verification method
Confirm with extraction then LC-MS test and keep the report against the bulk record. Working figures for APEO and NPEO Limits normally sit around usually below 100 ppm in mainstream production. Note extraction then LC-MS test on the tech pack so nobody tests against an older revision.
Commercial note
Tightening beyond practical need raises cost without improving garment life, so set the tightest target only where it protects the customer. Record elastane content alongside APEO and NPEO Limits, because blends shift the measured value. A result outside usually below 100 ppm usually points to process drift rather than to the fibre itself.
