Hi Vladimir, I have seen no such data—and what I think is not relevant. what i know would be, but i do not know anything about this. Werner -----Original Message----- From: vladimir Igoshev <[log in to unmask]> To: TechNet E-Mail Forum <[log in to unmask]>; Werner Engelmaier <[log in to unmask]> Sent: Tue, Dec 8, 2009 4:31 pm Subject: Re: [TN] SAC & LEAD (Pb) CONTAMINATION Werner, Do you think (have data) that Pb tends to segregate at GB? Regards, Vladimir SENTEC ------Original Message------ From: Werner Engelmaier Sender: TechNet To: [log in to unmask] ReplyTo: TechNet E-Mail Forum ReplyTo: Werner Engelmaier Subject: Re: [TN] SAC & LEAD (Pb) CONTAMINATION Sent: Dec 8, 2009 16:04 Hi Lee, First Q: What is the source of this info? Second: We have seen the incredible difference some of this trace-additives can make; so why not Pb. But this is really 'undiscovered' territory. Werner -----Original Message----- From: Lee Whiteman <[log in to unmask]> To: [log in to unmask] Sent: Tue, Dec 8, 2009 3:52 pm Subject: [TN] SAC & LEAD (Pb) CONTAMINATION Today, I read where if you added 0.5% Lead (Pb) into SAC, that the fatigue life would be reduced from 18,670 to 8,089. Question: How would the fatigue life react with Lead (Pb) levels in SAC ranging from 0.0% (Baseline) through 1.0%? Is it a linear relationship or exponential relationship? Thanks again. Lee Whiteman, PMP Senior Member Engineering Staff L-3 Communications East Telephone: (856) 338-3508 FAX: (856) 338-2906 E-Mail: [log in to unmask] --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 15.0 To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 ----------------------------------------------------- SENTEC 11 Canadian Road, Unit 7. Scarborough, ON M1R 5G1 Tel: (416) 899-1882 Fax: (905) 882-8812 www.sentec.ca --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 15.0 To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 -----------------------------------------------------