Hi Matthew, AIM's DavidS, IPC LF Listservers,

I am glad DavidS answered your note whereas I, as another David, am coming
at things from a different perspective.

I think you should be concerned to find out why Antimony is going up in
concentration. Usually it is purposely added someplace and you should
understand where it is coming into your soldering system. Again continual
increases of Sb for unknown reasons is a lot unusual. And even though I
agree with DavidS that some groups add Sb, I would check with your
reliability people.

Yours in Engineering, David
YiEngr, MA/NY DDave

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