Switching Rules (MIL-STD-105E, Z1.4)

Switching Between Normal, Reduced, and Tightened Inspection (Military Standard 105E, ANSI/ASQ Z1.4)

Here is a chart of the switching rules between the three types of inspection (and discontinuation of inspection), as given by the Military Standard 105E.

  10 consecutive batches not rejected   5 consecutive batches not rejected      
Reduced Inspection [Arrow Pointing Left]
[Arrow Pointing Left]
Normal Inspection [Arrow Pointing Left]
[Arrow Pointing Left]
Tightened Inspection [Arrow Pointing Left] Discontinue Inspection
  1 batch not accepted   2 of 5 consecutive batches rejected   5 consecutive batches remain on tightened inspection