not sure about industry standard, but no bake.  thermal  stress test  
is part of batch income QA test (or qualification test).  out of  
sealed bag as it is for me (the board should comply moisture limit or  
outgas requirement as received, except polyimide - I haven't seen a  
polyimide board for last 15 years... not flex, the real board with  
high temp application).
my 2 cents.
jk
On Aug 26, 2019, at 6:28 AM, <[log in to unmask]> wrote:

> Fellow TechNetters:
>
>     I have not had any responses to my initial inquiry.    
> Therefore, I post again.........
>
>    What is the Industry Standard for PWB Prior Conditioning Bake  
> Document prior to Thermal Stress  2.6.8
>
> Victor,
>