Dimensional Stability Test Methods and Acceptable Limits
Dimensional Stability is verified through AATCC 135 home laundering. Knowing how the method works avoids rejecting fabric that actually meets the requirement.
Method overview
AATCC 135 home laundering defines sample size, conditioning and calculation, so values are comparable only within the same revision. Working figures for Dimensional Stability normally sit around under 3% length, 4% width in mainstream production. Note AATCC 135 home laundering on the tech pack so nobody tests against an older revision.
Result interpretation
Read the value together with construction notes; under 3% length, 4% width is only meaningful for similar fabrics. Record elastane content alongside Dimensional Stability, because blends shift the measured value. A result outside under 3% length, 4% width usually points to process drift rather than to the fibre itself.
Typical limits
Buyers commonly write under 3% length, 4% width with a stated tolerance, then verify against AATCC 135 home laundering. Keeping reference values for Dimensional Stability lets suppliers quote without extra sampling rounds. Ask for conditioning details together with AATCC 135 home laundering, since both affect the reading.
Sources of variation
Conditioning time, operator technique and shade all influence the result. Working figures for Dimensional Stability normally sit around under 3% length, 4% width in mainstream production. Note AATCC 135 home laundering 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 Dimensional Stability, because blends shift the measured value. A result outside under 3% length, 4% width usually points to process drift rather than to the fibre itself.
