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Quarantine lot

A segregated batch of material or products held from normal flow until quality disposition is completed.

Definition and context

Quarantine lots prevent suspect material from being mixed with approved inventory and shipped by mistake.

They are a common containment action when defects are detected.

Control requirements

Lots in quarantine must be physically and digitally identified with clear status, owner, and disposition path.

Weak quarantine controls lead to accidental use of nonconforming material and repeated escapes.

Disposition outcomes

After review, lots are typically released, reworked, downgraded, returned, or scrapped with documented approvals.

Disposition should be linked to nonconformance reports for full traceability.

Where this term fits in the workflow

Quarantine lot is usually shown in the corrective action and containment.

Terms for stopping defects fast, documenting nonconformance, and proving corrective action is complete.

What is KaizenQ?

KaizenQ helps factory teams record inspection results, defect photos, and notes in one report shared with the office.

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KaizenQ inspection report preview

Key takeaways

  • Quarantine lots isolate risk while teams investigate quality issues.
  • Strong identification and disposition controls are essential.

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