Hi George - hypothetically, I would recommend that you give Doug Pauls
([log in to unmask]) a call and ask what cleaning chemistries are available
that would do an adequate job of getting rid of the Ethylene Glycol.  Oh,
and hypothetically speaking, I would take a look at either moving the
location of the anti-static bins where the hypothetical Assembled Circuit
Cards sit or install some type of drip pan to prevent the hypothetical
Ethylene Glycol from reaching the basement. Good Luck.

Dave Hillman
Rockwell Collins
[log in to unmask]





[log in to unmask] on 11/06/97 02:36:43 PM

Please respond to [log in to unmask]; Please respond to
      [log in to unmask]

To:   [log in to unmask]
cc:    (bcc: David D Hillman/CedarRapids/Collins/Rockwell)
Subject:  [TN] ASM: Ethlyene Glycol




'Netters!
Here is a theoretical question for you!
Let's assume an entirely hypothetical situation where a moderate number of
un-coated Assembled Circuit Cards were exposed to Ethlyene Glycol.  Just
for
arguements sake, lets say a cooling system dumped it's coolant on the first
floor above a hypothetical basement laboratory.  The hypothetical Ethlyene
Glycol dripped into the theoretical basement and filled up the typical
anti-static bins where the hypothetical Assembled Circuit Cards are
typically found.
<wink>
How would you clean these boards up?  Would you need to?
I assume there would be an impact on the SIR, but not on the ionic
contamination levels.  How could you tell when the boards were clean?
Isn't Ethlyene Glycol a major part of many "No-Clean" solder fluxes?
How could these cards be demonstrated to be fine?

George Franck
"Theoretically, my hypothetical opinions are typically not necessarily the
same as those of my postulated company."
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