Separate the causes
Edge included
Record whether the specimen contains selvedge and whether that matches the agreed test basis.
Body positions differ
Map sampling across width and roll length; one central cutting cannot demonstrate whole-roll uniformity.
Area or units differ
Check the measured area and whether the result is mass per area or linear weight.
Steps before deciding
- Retain labelled specimens and original reports.
- Record specimen location and edge inclusion.
- Compare conditioning and agreed measurement basis.
- Request like-for-like sampling rather than averaging unlike results.
- Separate sample-basis correction from an actual weight-variation decision.
Worked example
Hypothetical example: one specimen includes a reinforced edge and another is cut from the body. Their difference requires a sampling-basis review before declaring the body GSM changed.
Buyer questions
Can I discard the higher result?
Not without establishing why it differs and which basis was agreed.
Does one body sample prove the whole roll?
No; scope follows the sampling plan.
Discuss the evidence with Fred Textile
Send Fred Textile specimen positions, edge status and report units for a comparable weight review.
Reference and limits
The reference identifies Fred Textile’s manufacturing operations. The workflows are editorial buyer guidance, not laboratory procedures or product certification. Numerical examples are hypothetical and do not create acceptance limits. Agree the actual order and test basis before deciding.
Fred Textile facilities and manufacturing scope ↗