Technetters, IPC-TM-650 2.5.6 is for Rigid Printed Wiring Material and not for FPC, I guess. And ASTM D149,noted as one of Applicable documents, seems to define only the concept of measuring.(Although I am afraid my referenced D149-81 version is too old!) Does anybody suggest me the practical measurement method defined in any standards,besides JIS, on the Dielectric Breakdown Voltage of FPC? Best Regards, Toru Koizumi,Fujikura Ltd. [log in to unmask] *************************************************************************** * TechNet mail list is provided as a service by IPC using SmartList v3.05 * *************************************************************************** * To unsubscribe from this list at any time, send a message to: * * [log in to unmask] with <subject: unsubscribe> and no text. * *************************************************************************** * If you are having a problem with the IPC TechNet forum please contact * * Dmitriy Sklyar at 847-509-9700 ext. 311 or email at [log in to unmask] * ***************************************************************************