French Terry Test Methods and Acceptable Limits
French Terry is verified through terry and fleece machine. Knowing how the method works avoids rejecting fabric that actually meets the requirement.
Method overview
terry and fleece machine defines sample size, conditioning and calculation, so values are comparable only within the same revision. Working figures for French Terry normally sit around 240-320 GSM in mainstream production. Note terry and fleece machine on the tech pack so nobody tests against an older revision.
Result interpretation
Read the value together with construction notes; 240-320 GSM is only meaningful for similar fabrics. Record elastane content alongside French Terry, because blends shift the measured value. A result outside 240-320 GSM usually points to process drift rather than to the fibre itself.
Typical limits
Buyers commonly write 240-320 GSM with a stated tolerance, then verify against terry and fleece machine. Keeping reference values for French Terry lets suppliers quote without extra sampling rounds. Ask for conditioning details together with terry and fleece machine, since both affect the reading.
Sources of variation
Conditioning time, operator technique and shade all influence the result. Working figures for French Terry normally sit around 240-320 GSM in mainstream production. Note terry and fleece machine 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 French Terry, because blends shift the measured value. A result outside 240-320 GSM usually points to process drift rather than to the fibre itself.
