mpi system performance verification
 

mpi system performance verification
i'm preparing the reaccreditation nadcap audit concerning ndt. there is a requirement on the supplemental checklist ac7114/2s to use the as5282 tool steel ring insted of the ansi ketos ring, which conforms to astm e1444. i really don't understand what is the difference in using either one or another ring. i'll be glad if someone could answer this question. thank you everybody.