Hi I have come across a sample of brass pins (electroplated with Nickel to 2.5 microns and then a Tin/Lead 60/40 5 micron plating) have a green contamination at the ends and where they are inserted into a component. Can anyone remember from their Chemistry whether this green contamination is a Copper Oxide/Sulphide or a Nickel based salt? Is it ok to wash with IPA and replate the pins? Thanks in advance. *************************************************************************** * TechNet mail list is provided as a service by IPC using SmartList v3.05 * *************************************************************************** * To unsubscribe from this list at any time, send a message to: * * [log in to unmask] with <subject: unsubscribe> and no text. * ***************************************************************************