Hey everyone,

Has anyone come to a conclusion when using IPC-tm-650 number 2.3.39? Item
6.8 clearly avoids any usable answer. I am looking for max. acceptable
levels of  contaminants for bare boards (incoming from the fab house) and
assembled boards (before they are shipped from our dock). How about a
listing of severity of certain contaminants as they pertain to dendrite
growth on pcbs? I have test results, but I'm not a chemist so I am having a
hard time coming up with definitive answers to what is "bad" and what can
pass.
I know there must be "real world" experienced people out there that can
help.


TIA

Jim Walton