Surely one of the board shops will have a copy. I have an old one in my book case and it calls out: GF= Glass (woven fabric) base, epoxy resin, flame resistant N = Base material without coloring agent or opacifier. Sorry, I don't have an electronic copy here, but I'll check on my personal PC. The new IPC document is IPC-4101 Best regards, Mel Parrish Director, Training Materials and Resources Soldering Technology International Inc. 102 Tribble Drive Madison, AL 35758 256 705 5530 256 461 9566 Fax [log in to unmask] www.solderingtech.com -----Original Message----- From: TechNet [mailto:[log in to unmask]]On Behalf Of Dave Dixon Sent: Monday, August 25, 2003 3:20 PM To: [log in to unmask] Subject: [TN] Mil Spec help Hi Technetters, I am looking for information on board material conforming to MIL-P-13949/4 Type GFN. I searched for this spec. at assist.daps.dla.mil without success. Any clues would be appreciated on where to find this spec. Thanks in advance. Dave Dave Dixon Engineering Technician Aero-Mach Labs Inc. --------------------------------------------------- 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 -----------------------------------------------------