Dear SIR, could you kindly provide the update info regarding the maximum bias for the conformal coating SIR test? Is it still 333 V/mm? assume I use read out at 100 Vdc and bias at 50 Vdc for the B-25A, am I right that bias max is 333V/mm and read out is at 666V/mm spacing? Thank you very much. Best regards, jk ps. I know Concoat recommend low voltage bias, but the current test method 650-2.6.3.4 is still high voltage. (50Vdc bias)... by the way, anyone has table regarding the dielectric withstanding voltage per IPC-CC-830? Many thanks.) --------------------------------------------------- Technet Mail List provided as a 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 847-615-7100 ext.2815 -----------------------------------------------------