FIT

[Alan Gore]

[Originally Posted: 10/31/00--Transferred by ReliaSoft Moderator]

I have a source control document that requires "a maximum 10,000 FIT steady state failure rate at 40 deg Celsius". I understand the general concepts of accelerated life tetsing but what does FIT stand for?

[S. Nath]

[Originally Posted: 10/31/00--Transferred by ReliaSoft Moderator]

FIT stands for Fault Isolation Test. FITS - Failures per 10^9 hours.

[Dr. Dave Olwell]

[Originally Posted: 11/1/00--Transferred by ReliaSoft Moderator]

My references say FIT stands for "failures in time" (Meeker & Escobar, 1998, p. 30). I agree that the units are failures per 10^9 units of time.

Best wishes,

Dr. Dave