Glass Container & Bottle Manufacturing worked example

Defect Inspection Rate at 0.81% target defect rate: a worked example

Push target defect rate up to 0.81% and the picture changes. This example computes every intermediate figure at that operating point. Use it when quality teams need to track checks, stones, blisters, seeds, cracks, birdswings, finish defects, dimensional rejects, labeling damage, or vision-system rejects against the control target.

The inputs for this scenario

  • Rejected containers at inspection: 420 containers (unchanged)
  • Inspected containers: 52,000 containers (unchanged)
  • Target defect rate: 0.81 % (raised for this scenario; the documented default is 0.7)

Working through the calculation

  • Applying the documented formula (Defect inspection rate = rejected containers at inspection ÷ inspected containers × 100) to the inputs above produces each figure below.
  • At this operating point the engine returns 0.81 % for inspection defect rate, the number this scenario is built around.
  • At this operating point the engine returns 0 points for defect-rate gap to target.
  • At this operating point the engine returns 420 count for rejected containers at inspection.
  • At this operating point the engine returns 52,000 count for inspected containers.

How this compares with the baseline

  • Against the tool's baseline example, where target defect rate sits at 0.7% and the headline result is 0.81 %, this scenario lands almost exactly on the baseline at 0.81 %.
  • It computes the percentage of inspected glass containers rejected at cold-end inspection and the gap between that rate and your reject target. The value of this scenario is the size of the gap it exposes: that gap, priced out over a year, is the budget you can justify spending to close it.

Results at a glance

  • Inspection defect rate: 0.81 % (headline result)
  • Defect-rate gap to target: 0 points
  • Rejected containers at inspection: 420 count
  • Inspected containers: 52,000 count

Run it with your numbers

  • Every input above is editable in the live Defect Inspection Rate calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.