Compression Level Why Shipments Get Rejected Over This
Many disputes come down to Compression Level. Below is what inspectors check and why shipments fail.
The core definition
pressure applied to the body by a garment. Working figures for Compression Level normally sit around light 8-15 mmHg, firm 20-30 mmHg in mainstream production. Note RAL-GZ 387 compression classes on the tech pack so nobody tests against an older revision.
Most common cause of failure
Results usually fall outside light 8-15 mmHg, firm 20-30 mmHg because the target was never written into the order. Record elastane content alongside Compression Level, because blends shift the measured value. A result outside light 8-15 mmHg, firm 20-30 mmHg usually points to process drift rather than to the fibre itself.

How it is checked
Inspection and laboratory work both refer to RAL-GZ 387 compression classes. Keeping reference values for Compression Level lets suppliers quote without extra sampling rounds. Ask for conditioning details together with RAL-GZ 387 compression classes, since both affect the reading.
Related faults
too much pressure reduces comfort and circulation, so related complaints often point back to this single parameter. Working figures for Compression Level normally sit around light 8-15 mmHg, firm 20-30 mmHg in mainstream production. Note RAL-GZ 387 compression classes 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 Compression Level, because blends shift the measured value. A result outside light 8-15 mmHg, firm 20-30 mmHg usually points to process drift rather than to the fibre itself.