Acceptable quality level

Acceptable quality level is the maximum number of defective units that will be accepted from a random sample that will still allow a production batch to be accepted. If the acceptable quality level is not reached, it will be necessary to examine the units in the production run in more detail to determine which issues are causing problems with the batch. This measurement is closely followed by organizations wishing to reach the six sigma level of quality control.

A company producing goods that are supposed to have extremely high quality levels will set a more stringent acceptable quality level, so that very few issues will trigger a review of a production process.