APEO and NPEO Limits Why Shipments Get Rejected Over This
Many disputes come down to APEO and NPEO Limits. Below is what inspectors check and why shipments fail.
The core definition
restrictions on nonylphenol ethoxylates. 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.
Most common cause of failure
Results usually fall outside usually below 100 ppm because the target was never written into the order. 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.
How it is checked
Inspection and laboratory work both refer to extraction then LC-MS test. 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.
Related faults
it appears in almost every European RSL, so related complaints often point back to this single parameter. 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.
Avoiding rejection
Agree targets, tolerances and the method before production, then test per lot rather than per shipment. 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.
