Bob: The term used in some companies is DPMO or defects per million opportunities. There was a thread a few weeks ago on this subject. There were several suggestions about it.. Suggest to look on the archives. Regard, Ramon > -----Original Message----- > From: bob wettermann [SMTP:[log in to unmask]] > Sent: Wednesday, October 22, 2003 8:11 PM > To: [log in to unmask] > Subject: [TN] Board Shop Outgoing QC Measurement Suggestions > > What is the the most common practice for measuring the outgoing QC levels > of a PCB fabrication facility? Are ppm defect rates used? If so how are > they practically measured-by the number of solder joints, the number of > operations performed per board or...? > > --------------------------------------------------- > Technet Mail List provided as a free 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 > 847-509-9700 ext.5315 > ----------------------------------------------------- > > BWET > > > Bob Wettermann > PH 847-767-5745 --------------------------------------------------- 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 847-509-9700 ext.5315 -----------------------------------------------------