NASA Reference Publication 1124, Rev. 4 published by Goddard Space Flight Center gives FR4 A TML rating less than 0.42 and a CVCM less than 0.01. Outgassing limits are TML less than 1.0 and CVCM less than 0.10 for space and high vacuum applications. -----Original Message----- From: Dan R. Johnson [mailto:[log in to unmask]] Sent: Thursday, March 27, 2003 1:35 PM To: [log in to unmask] Subject: [TN] FR-4 outgassing I looked through the archives and didn't see any information on out gassing from FR4. I have a customer who has requested a part with no outgassing. I can contact Rogers and GE for tech info on Rogers 4053 and Getek, but really don't have a clue who to contact about generic FR4 out gassing characteristics. Can anyone out there provide any insight? Thanks, Dan --------------------------------------------------- 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/html/forum.htm 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/html/forum.htm for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 -----------------------------------------------------