I think it the MIL-P-13949/12 is the equivalent to the IPC spec 4101/12, but I'm not 100% positive. See http://www.lyncolec.co.uk/page43.html And http://www.standardpc.com/IPC-4101B%20Reference%20chart.pdf And http://www.dynamixtechnology.com/docs/crossref.pdf Bob Wilson -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Bill Dworak Sent: Thursday, August 14, 2008 10:02 AM To: [log in to unmask] Subject: [TN] Material question Does anybody know what material is for MIL-P-13949/10 and MIL-P-13949/12 ? I am struggling finding information on these have been searching with not any firm results. Looks like the /10 is Polyimide but cannot find anything on /12. Thank you Bill Dworak --------------------------------------------------- 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 -----------------------------------------------------