Hi Tom or Thomi, IPC-LF Listservers, Neat, that you did these calculations. This information is great to know yet it seems like promoting speeding at 200k/h in a 189k/h zone. Tom, remember .1% by weight is eventually going to be a measurement, and a goof up limit. We on IPC-LF should not promote soldering process management of .1% by weight. There will always be that component that just isn't yet LF, so these kind of calculations do add value. Yours in Engineering, Dave YiEngr, MA/NY DDave P.S. Tom, Those Umlauts still come through clean and kind of neat. Check them out by going into the ipc.org web site and reading your notes or mine in reply. -------------------------------------------------------------------------------Leadfee Mail List provided as a service by IPC using LISTSERV 1.8d To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Leadfree To temporarily stop/(start) delivery of Leadree for vacation breaks send: SET Leadfree NOMAIL/(MAIL) Search previous postings 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 -------------------------------------------------------------------------------