Identify the inspection lot

Locate the batch or shipment to be inspected. Record the lot number, supplier or production line, date, and quantity. Verify the inspection is scheduled or triggered.

2

Pull inspection samples

Select samples according to the sampling plan (e.g., AQL table). For incoming materials, pull from multiple cartons. For production, sample at defined intervals.

3

Visual inspection

Examine samples for surface defects, color consistency, labeling accuracy, and packaging integrity. Compare against the approved reference sample or specification sheet.

4

Dimensional measurement

Use calibrated tools (calipers, gauges, scales) to verify critical dimensions against the specification drawing. Record each measurement.

5

Functional test (if applicable)

Test the product's function as defined in the test plan: fit check, electrical test, pressure test, or other criteria. Document pass/fail for each test.

6

Record results

Enter all inspection results into the quality log or QMS system. Include pass/fail status, measurements, photos of defects, and inspector name.

7

Disposition decision

Based on results: Accept the lot (move to storage/shipping), Reject (quarantine and notify supplier/production), or Hold (escalate for review by quality manager).

8

Label and release

Apply the appropriate status label to the lot: green (accepted), red (rejected), or yellow (on hold). Update the inventory system to reflect the disposition.

Quality Inspection SOP Template

What this SOP covers