Machine Gauge (E) Setting It Correctly on a Tech Pack
Machine Gauge (E) should be written into the tech pack with a value, a tolerance and a method. This removes ambiguity from quotations.
Definition to agree
needles per inch on the knitting machine. Working figures for Machine Gauge (E) normally sit around 14G to 40G for circular knitting in mainstream production. Note machine specification on the tech pack so nobody tests against an older revision.
Target value
Open the specification at 14G to 40G for circular knitting, adjusted to the end use. Record elastane content alongside Machine Gauge (E), because blends shift the measured value. A result outside 14G to 40G for circular knitting usually points to process drift rather than to the fibre itself.

Method line
Always pair the target with machine specification so the mill and the laboratory test the same way. Keeping reference values for Machine Gauge (E) lets suppliers quote without extra sampling rounds. Ask for conditioning details together with machine specification, since both affect the reading.
Tolerance line
State plus or minus limits to keep production realistic while protecting the requirement. Working figures for Machine Gauge (E) normally sit around 14G to 40G for circular knitting in mainstream production. Note machine specification on the tech pack so nobody tests against an older revision.
Approval step
Approve the result on pre-production bulk rather than on development fabric only. Record elastane content alongside Machine Gauge (E), because blends shift the measured value. A result outside 14G to 40G for circular knitting usually points to process drift rather than to the fibre itself.