I don't agree, we need a standard PROACTIVE method of detection. I don't think that anyone is suggesting that the industry tool up ion chromatography but, it is the superior tool to baseline the process. The industry is having real world problems due to this issue. We need this study completed so that the board fab world and the end users have a document that is relevant, standard ROSE is not. >>> Robisan1 <[log in to unmask]> 04/06/98 01:45pm >>> Jon Right! So if you fail SIR, it would be appropriate to perform ion chromatography to determine which material was the cause for failure. But to do ion chromatography up front seems like overkill and costly when you might not need it at all. Susan Mansilla ################################################################ TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c ################################################################ To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TechNet <your full name> To unsubscribe: SIGNOFF TechNet ################################################################ Please visit IPC web site (http://jefry.ipc.org/forum.htm) for additional information. For the technical support contact Dmitriy Sklyar at [log in to unmask] or 847-509-9700 ext.311 ################################################################ ################################################################ TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c ################################################################ To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TechNet <your full name> To unsubscribe: SIGNOFF TechNet ################################################################ Please visit IPC web site (http://jefry.ipc.org/forum.htm) for additional information. For the technical support contact Dmitriy Sklyar at [log in to unmask] or 847-509-9700 ext.311 ################################################################