A student has asked how far do they need to go to ensure no-cross
contamination between leaded and lead-free solders at a single
workstation? We have discussed the obvious, but the question become how
far to go? (Completely separate soldering stations is not an option.
Soldering operators will be soldering both lead-free and leaded at the
same workstation). The obvious we have discussed, separate:

Soldering station, tips and sponge
Solvent and brushes

Is there a possibility with cross contamination with use of hand tools
(e.g. cutters, pliers, tweezers, etc)?

Your comments are greatly appreciated.

Gregg A. Owens, MIT
Manufacturing Technology Training Center, Inc.



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