Thank you.  A fuzzy memory said Hughes Aircraft used such a test years ago.


Doug Pauls
Principal Materials and Process Engineer
Rockwell Collins

On Fri, Jun 15, 2018 at 2:31 PM, David Douthit <[log in to unmask]> wrote:

> Douglas,
>
> I am searching my records for some AT&T/BELL labs testing to simulate
> “dirty air/condensation”. These experiments determined that condensation
> would begin on average at 60% Rh and a film would form with a Ph factor
> between 2 and 4! I think this is called corrosion!
>
> If I find those methods (done in the 80’s) I will forward you the
> references!
>
> David A. Douthit
>
>
> > On Jun 15, 2018, at 7:14 AM, Douglas Pauls <[log in to unmask]
> COM> wrote:
> >
> > Good morning all,
> >
> > I am about to turn one of my co-ops loose on a project.  Years back, I
> > recall a test method, I think from a Mil-STD, that involved exposing a
> > circuit to "branch water".  This was water with some form of electrolyte
> in
> > it to represent condensed water from a dirty atmosphere.  Is anyone
> > familiar with the test method I am thinking of?  Or something similar?
> >
> >
> > Doug Pauls
> > Principal Materials and Process Engineer
> > Rockwell Collins
> >
>