It has been my understanding that the standard in place at the time of the contract is what should be expected. When the standards are supercede the notes usually state something like " This standard has been superceded and shall not be used for new contracts " This still leaves the question open on some older, ongoing contracts. I would normally expect my supplier to use the current spec. But I know others will disagree. If there is a compelling reason to use the older spec. I would hope the buyer would inform the supplier. Charles Caswell -----Original Message----- From: d. terstegge [mailto:[log in to unmask]] Sent: Monday, August 25, 2003 9:22 AM To: [log in to unmask] Subject: [TN] Mil-P-55110 versus MIL-PRF-31032 Hi Technet, Mil-P-55110D is not active anymore, and has been replaced by MIL-PRF-31032. If the production-drawing states "PCB shall be produced according to to MIL-P-55110D" does it mean that the board manufacturer has the freedom to use the replacement specification ? The specific issue is that Mil-P-55110 D does not allow exposed fibers, whereas Mil-PRF-31032 does allow this (with some restrictions of course), but I assume there are more diffferences between these two specs. Best regards, Daan Terstegge Thales Communications Unclassified mail Personal Website: http://www.smtinfo.net --------------------------------------------------- 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 ----------------------------------------------------- --------------------------------------------------- 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 -----------------------------------------------------