Another way is to remove a small amount of solder from different solder joints and send it to one of the solder analysis companies, just as you would a solder sample from a wave solder pot. It may not be as accurate as some of the other methods, but it will certainly be a low cost method that would give you a pretty good indication. -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Hans Shin Sent: Tuesday, November 01, 2005 10:41 AM To: [log in to unmask] Subject: Re: [TN] Lead-Free testing Carl, To answer both of your questions, SEM/EDS analysis is a good way to see if it's a Pb-free solder or Sn/Pb solder. If you have XRF with elemental characterization capability, that should work as well. The instrument chambers should accomodate most sizes. If not, a tiny amount of solder can be removed from one location for SEM/EDS analysis. Hans Shin Pacific Testing Laboratories, Inc. www.pacifictesting.com -----Original Message----- From: TechNet [mailto:[log in to unmask]]On Behalf Of Carl VanWormer Sent: Tuesday, November 01, 2005 8:27 AM To: [log in to unmask] Subject: [TN] Lead-Free testing Is there an easy way to verify that an assembly has been produced with lead-free solder? Conversely, is there a quick and easy test for lead in a solder joint? Carl Van Wormer Cipher Systems 1800 NW 169th Place, Suite B-100 Beaverton, OR 97006 Phone (503)-617-7447 Fax (503)-617-6550 --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 1.8e 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 ----------------------------------------------------- --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 1.8e 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 -----------------------------------------------------