Greetings All! Recently I was asked about IPC-A-600G pages 19 & 60. Page 19 @ 2.3.3 states under Acceptable - Class 2, 3: The blister or delamination does not span more than 25% of the distance between adjacent conductive patterns. Page 60 @ 3.1.4 states under Acceptable - Class 2, 3: No evidence of delamination or blistering. Page 19 deals with characteristics observable from the surface. Page 60 deals with visual observations made on cross-sections only. Before I reply I thought to see if you had any input. With Respect, Dave --------------------------------------------------- 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 -----------------------------------------------------