Graham, He should be using a flux that he knows for sure will NOT contribute to lowering the resistance. There are lots of cored wires out there that meet this criteria. Bev Christian] Research in Motion -----Original Message----- From: Graham Naisbitt [mailto:[log in to unmask]] Sent: September 10, 2002 8:53 AM To: [log in to unmask] Subject: [TN] SIR Testing issue Hello Techies I do hope you can help with this one: I have a board fabricator who is testing to GR-78-CORE Issue 1 September 1997. In section 14.4.3 - Terminating Test Patterns that are hand soldered using R or RMA flux. It states: "do not remove flux." His questions: Why? Also, how does he do this as this (flux residues) will influence his test results? So, anyone care to answer....Doug, put that Mountain Dew down for just a moment... MoonMan, is this covered in your book....Steve, can't use your new toy for this soldering job... Regards, Graham Naisbitt -- [log in to unmask] NEW ADDRESS... I am now operating from our new Offices at Millfield House, Fleet Road Fleet, Hampshire GU51 3QF Phone: +44 (0)1252 813706 PLEASE AMMEND YOUR ADDRESS BOOK. Concoat has NOT moved, only the company administration. All other communications as below: Concoat - Engineering Reliability in Electronics Concoat Systems - Measuring Electronics Reliability Synergie - Electro-chemically compatible process chemistries Concoat Limited Alasan House, Albany Park Camberley, GU16 7PH - UK Phone: +44 (0)1276 691100 Fax: +44 (0)1276 691227 Mobile: +44 (0)79 6858 2121 Web: www.concoat.co.uk & www.concoatsystems.com ---------------------------------------------------------------------------- ----- 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 ---------------------------------------------------------------------------------