Switching Between Normal, Reduced, and Tightened Inspection (ISO 2859-1)
Here is a chart of the switching rules between the three types of inspection (and discontinuation of inspection), as given by ISO 2859-1.
|Switching score value is at least 30
|5 consecutive batches accepted
|1 batch not accepted
|2 of 5 or fewer consecutive batches not accepted
|5 batches not accepted while on tightened inspection