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Incoming Quality Control (IQC)

Inspection and verification of raw materials and components before they enter production.

Definition and context

Incoming Quality Control filters supplier issues before they disrupt production lines or reach customers.

IQC data feeds broader supplier quality programs that score suppliers and drive improvement.

Setting IQC standards

Teams define sampling levels, visual criteria, and measurement requirements per component.

Critical materials may require 100% inspection or certified laboratory tests before release.

Common IQC checkpoints

Inspectors verify part numbers, dimensions, cosmetic finishes, packaging integrity, and compliance documentation.

Missing Certificates of Conformity often trigger holds even when visual checks pass.

Where this term fits in the workflow

Incoming Quality Control (IQC) is usually shown in the inspection and sampling.

Terms used when teams decide what to inspect, how much to sample, and whether a lot can ship.

What is KaizenQ?

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

Learn more
KaizenQ inspection report preview

Key takeaways

  • IQC catches supplier issues before they reach production.
  • Clear specifications and documentation are essential for consistency.

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