The final step brings everything together. Confirm the lot, pick the right severity from the switching log, read the sample size and the Ac/Re pair for each defect class, draw the sample, inspect, and count. Then apply one rule: the lot is accepted only if every defect class is at or below its accept number. If any single class reaches its reject number, the lot is rejected regardless of how the other classes look.
A shirt with more than one defect is counted once, under its most serious defect. Do not add majors and minors together into one total; the plan gives each class its own limits for a reason. Record the counts, the decision, the inspector's name and the date on the lot report so the switching log can be updated.
A rejected lot is not scrap. The usual route is to return it to production for 100% sorting and repair, then resubmit it as a new lot for inspection, often under tightened severity. Re-sampling the same lot repeatedly until it happens to pass defeats the entire method and must never be allowed.
Standard Procedure
- 1Confirm lot size and current inspection severity from the log.
- 2Draw the sample randomly and inspect every sampled unit.
- 3Count defective units under each class, one count per unit at its most serious defect.
- 4Compare each class to its own Ac and Re; reject if any class reaches Re.
- 5Record the result, update the switching log, and route rejected lots for 100% sorting and resubmission.
Lesson Summary
- ✓Judge each defect class separately; never pool majors and minors.
- ✓Rejected lots are sorted, repaired and resubmitted as a new lot, never re-sampled until they pass.