I'm sorry, but wasn't the original question regarding requirements like testing every value in a series for a material content breakdown? I am not talking screening every order, where you may catch bad batches that don't meet the spec stated, but rather, reporting what the actual expected material content is for a part series like an 0603 5% thick film resistor. Would a 51 ohm resistor really have any different measurable material content from a 75 ohm, or a 1K ohm, for that matter, if all of them were from the exact same manufacturer, and same resistor series datasheet? There are thousands of values. How can we really expect the resistor company to provide individual breakdowns/test results for each of 1000's of values of a part they are selling for .01 cent each? Genny -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Stadem, Richard D. Sent: December 14, 2009 5:47 AM To: [log in to unmask] Subject: Re: [TN] RoHS burden Oh, yes. Absolutely a requirement. We do this on every LOT of components. You need to do this to ensure there are no Sn99 or gold-finished parts that would require tinning in order to prevent tin whisker issues in high rel applications, especially for space and aviation. The finish described on the component print is not the actual finish on about 5-8% of all components received, even when there are stringent clauses in the purchase order. It is too bad that the component industry is so far out of control. We also get class 5a MSDs that are not labeled as such, etc. We run that XRF at least 8 hours per day. For those parts we know we cannot get in the desired finish, we use a robotic tinning cell made for us by V-Tek. This is truly an amazing machine, extremely versatile. We can tin right up to the component body without hurting the components, because the immersion point, immersion speed, and immersion dwell can be very precisely programmed such that we get 100% tin/lead coating over the entire termination, not just the part to be soldered. -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Inge Sent: Saturday, December 12, 2009 3:16 AM To: [log in to unmask] Subject: [TN] RoHS burden Hi all, have not had time to take part of the discussions for a while. Am consulting at another company. They needed help with doing analysis of components. Boeing is incorporated. I got a list of forbidden materials from them. Not many can cope with Boeing's requirements. Only a few in whole Europe! Now, I've a question. Has anyone of you been involved in such tough demands, namely this one...not only they call for checking the finish of every component type, but all values (!!) within each component family. That means, that one sample from EVERY resistor value must be analyzed and reported to Boeing. An incredible job list. Does this make sense? /Inge --------------------------------------------------- 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 ----------------------------------------------------- --------------------------------------------------- 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 -----------------------------------------------------