PPM
Quality
PPM (Parts Per Million)
Parts Per Million
Defect or nonconformance rate expressed as the number of affected parts per million parts supplied or produced.
Examples
- 01A connector supplier ships 2.5 million parts a year with 18 complaints, which is 7.2 PPM against a customer target of 10 PPM.
- 02In the monthly supplier ranking, PPM is shown next to the number of complaints, so one large batch of rejects is not hidden by high volumes.
- 03When PPM jumps from 5 to 140 after a model change, the team first checks the new part numbers and finds a mixed-up packaging label.