Basically, it says 100% test (includes everything , even mounting holes) using the following parameters: continuity resistance (max.) isolation resistance (min.) Class 1 50 ohms 500K ohms Class 2 20 ohms >2 megohms Class 3 <20 ohms > 2 megohms Nets that start on one side and end on the other require double-sided (e.g. clamshell) test. I just looked it up. (IPC-ET-652, Oct. 1990) > ---------- > From: Ed Cosper > Sent: Thursday, July 1, 1999 5:23 AM > Subject: IPC test standard > > Hi all, > > I have a requirement to test boards to IPC-ET-652 section 4.4. I do not > currently have spec. Can someone tell me what section 4.4 of this > standard says. > > Thanks, > > Ed Cosper >