Good Morning All,

In a message dated 96-05-09 16:17:13 EDT, Lyn Lynch wrote:

>     Look at the QPL for MIL-C-46058. This won't give you performance 
>     results, but it will tell you which coatings have passed the 
>     performance requirements sections of the specification. Part of 46058 
>     requires humidity exposure testing per MIL STD 810. I believe this 
>     testing is done with the power off.

The testing in MIL-I-46058 is done per MIL-STD-202, method 106, which is a
cyclical temperature humidity profile (25C to 65C, 90% RH, twice per day).
 During all times when measurements are not being made, there is a polarizing
voltage of 100 volts DC applied.  Measurements are made at 500 volts DC.

>     
>     As far as powered-up, high moisture environmental test results, I 
>     suspect that you would need to test your specific design for 
>     performance.

I agree, but the question become how to test.  We deal with a number of
customers who have their own burn-in tests under various accelerating
conditions.  Some do high temp, high humidity, some cyclical, some freezing.
 It all depends on what will best find your infant mortality cases.

Doug Pauls
CSL