Hi Brian, You may want to consider repeating test #3 after environmental conditioning. The true test of a plating is corrosion resistance over time.
Best of luck, Mark Stultz | CMSE | Sealed Air | Automated Packaging Systems | Streetsboro, OH | 330-342-2402 From: Brian Kunde <bkundew...@gmail.com> Sent: Tuesday, 11 April, 2023 3:45 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: [PSES] How to Measure Surface Conductivity? CAUTION: This email originated from outside of the organization. Do not click links or open attachments unless you recognize the sender and know the content is safe. I have been given two samples of metal plates; one plated in our current material and the other with a new plating material we want to switch to in production. I have been tasked to compare the electrical surface conductivity. What is the best way to do this? How is this done in the industry? I have tried the following methods; 1. DMM (Ohm Meter) = inconclusive results 2. Used 5 volts from a current limited power supply and measured the current = inconclusive results 3. Used our Ground Bond Tester set to 60 amps. One plate measured 3-4mΩ, the other 1-3mΩ I measured 1 inch apart and from corner to corner. Test #3 above is the only test that showed any difference. BTW, I use 3/4" squares of soft braid material between the probes and surface. The probes are zeroed out between tests. So far, I can conclude that the new material is as good as, or slightly better than our current production plating material. What more can I do, within reason? Thanks to all. The Other Brian - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <emc-p...@ieee.org<mailto:emc-p...@ieee.org>> All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html<https://nam10.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.ieee-pses.org%2Femc-pstc.html&data=05%7C01%7Cmark.stultz%40sealedair.com%7C95c231323dd74650650108db3ac55a56%7C2691a2514c384643af0b0c0982f197bd%7C0%7C0%7C638168391522028104%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=Cj%2BBWsbjnQ0FGcKdE2q%2FBthirKgV3fYDWXu7OMfXnMs%3D&reserved=0> Website: http://www.ieee-pses.org/<https://nam10.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.ieee-pses.org%2F&data=05%7C01%7Cmark.stultz%40sealedair.com%7C95c231323dd74650650108db3ac55a56%7C2691a2514c384643af0b0c0982f197bd%7C0%7C0%7C638168391522028104%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=QDUUep6NDYuFNCMntHnphpun33KM6I6tDE%2BcF%2FXZMEk%3D&reserved=0> Instructions: http://www.ieee-pses.org/list.html (including how to unsubscribe)<https://nam10.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.ieee-pses.org%2Flist.html&data=05%7C01%7Cmark.stultz%40sealedair.com%7C95c231323dd74650650108db3ac55a56%7C2691a2514c384643af0b0c0982f197bd%7C0%7C0%7C638168391522028104%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=neEV%2BYbI8jF7wP8xjAymfaUTLxK%2Bj%2F%2BtXriZreTLrPY%3D&reserved=0> List rules: http://www.ieee-pses.org/listrules.html<https://nam10.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.ieee-pses.org%2Flistrules.html&data=05%7C01%7Cmark.stultz%40sealedair.com%7C95c231323dd74650650108db3ac55a56%7C2691a2514c384643af0b0c0982f197bd%7C0%7C0%7C638168391522028104%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=wRxDEPhL7PQqGFAWhrrwoKTQ2ZQ3gyZRadW1nbfNLm4%3D&reserved=0> For help, send mail to the list administrators: Mike Cantwell <mcantw...@ieee.org<mailto:mcantw...@ieee.org>> For policy questions, send mail to: Jim Bacher <j.bac...@ieee.org<mailto:j.bac...@ieee.org>> David Heald <dhe...@gmail.com<mailto:dhe...@gmail.com>> ________________________________ To unsubscribe from the EMC-PSTC list, click the following link: https://listserv.ieee.org/cgi-bin/wa?SUBED1=EMC-PSTC&A=1 - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <emc-p...@ieee.org> All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Website: http://www.ieee-pses.org/ Instructions: http://www.ieee-pses.org/list.html (including how to unsubscribe) List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher: <j.bac...@ieee.org> David Heald: <dhe...@gmail.com> _________________________________________________ To unsubscribe from the EMC-PSTC list, click the following link: https://listserv.ieee.org/cgi-bin/wa?SUBED1=EMC-PSTC&A=1
