We have used the nitric acid vapor test (ASTM B-735-89) for several years. It it is very simple to perform and has served us well. Michael Holan Radian International Electronics Div. [log in to unmask] ______________________________ Reply Separator _________________________________ Subject: FAB: Gold Porosity Testing Author: [log in to unmask] at INTERNET Date: 8/23/96 8:29 AM We are a printed circuit board manufacturer and have been testing gold porosity on contact fingers with the Electrographic Paper test per Bellcore TR-NWT-0000078, paragraph 14.2.2.1 for many years. Our supplier for the electrographic paper (Dyntronix) is going to discontinue selling the Nioxime paper because the manufacturer is not going to make it anymore. Is anyone else using this test method? If so, is there another supplier of this paper? If not, what method are you using? Bellcore also allows electrographic gel or a corrosive gas test (typically nitric vapor). Any info is appreciated. Thanks, David Arivett Cuplex Inc. *************************************************************************** * 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. * *************************************************************************** *************************************************************************** * 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. * ***************************************************************************