Hi Andrew

This would not apply to metal housings as described only to the electronic
circuit assembly.

Mark you, if there is yukky stuff on the metal housing and the housing drips
condensation onto the circuit assembly that might then contain some of this
yukky stuff...then you might have a problem.

Hope it helps

Graham Naisbitt


On 20/2/06 18:00, "Joseph H. Smith" <[log in to unmask]> wrote:

> Fellow technetters,
>
> I realize that there is an expected specification levels for the NaCl
> contamination of PCB's.  Pardon me if I may be asking a dumb question, but
> does plated metal such as housings and the like be under the same
> specification limits for NaCl?   Are there guidelines or documentation within
> the industry which state this value?  These are metals that may come in close
> proximity to the PCB but necessarily mounted on the PCB.
>
> Andrew Kettlewell
> Sr Process Engineer
> Sypris Electronics
> Tampa, Fl
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