Hi Douglas, I am only aware of Table J.1 in IEC 60950-1. Are there any other IEC standards that reference the same or a different table?
I do not know its source for sure, but the values given in this table seem to match those from the anodic index cited in Wikipedia (https://en.wikipedia.org/wiki/Galvanic_corrosion#Anodic_index), which gives the following reference: Wheeler, Gerson J., The design of electronic equipment: a manual for production and manufacturing, Prentice-Hall, 1972. Can anybody confirm that this is the source and happens to have a copy of the original publication? Kind regards, Bernd Von: Douglas E Powell <doug...@gmail.com> Gesendet: Freitag, 5. Februar 2021 19:05 An: EMC-PSTC@LISTSERV.IEEE.ORG Betreff: [PSES] Friday Question - table of electrochemical potentials For years, I've used the same or similar table for dissimilar metals and the possibility of corrosion for "pairs of common metals in use". This table shows up in many IEC based standards and no one I know questions the validity. I got curious as to the source and why this particular list of "common metals" was chosen. Going as far back as the early 1990s I cannot find any attribution to the source material. Can anyone provide some background on this? Thanks, Doug -- Douglas E Powell Laporte, Colorado USA doug...@gmail.com<mailto:doug...@gmail.com> http://www.linkedin.com/in/dougp01<https://eur01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.linkedin.com%2Fin%2Fdougp01&data=04%7C01%7C%7Cf1bd65beb30b4b56e63208d8ca00abdc%7C39288a38ff19432c80111cd9d0dff445%7C0%7C0%7C637481451516750325%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=Bk8gGVbChDBVZEmGmC5SuuXySJtTdOINhiNyWlHavQc%3D&reserved=0> - ---------------------------------------------------------------- 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://eur01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.ieee-pses.org%2Femc-pstc.html&data=04%7C01%7C%7Cf1bd65beb30b4b56e63208d8ca00abdc%7C39288a38ff19432c80111cd9d0dff445%7C0%7C0%7C637481451516750325%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=%2BuqyQJpXM%2BnjNv%2Fo%2BGWEg58OaBhn48A%2FYJVfFVqxl8c%3D&reserved=0> Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/<https://eur01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fproduct-compliance.oc.ieee.org%2F&data=04%7C01%7C%7Cf1bd65beb30b4b56e63208d8ca00abdc%7C39288a38ff19432c80111cd9d0dff445%7C0%7C0%7C637481451516760280%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=%2Fr8w4XGuE4KS9TUE0Q4s7OrcDRWJWdzpPPEuJKne3So%3D&reserved=0> can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/<https://eur01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.ieee-pses.org%2F&data=04%7C01%7C%7Cf1bd65beb30b4b56e63208d8ca00abdc%7C39288a38ff19432c80111cd9d0dff445%7C0%7C0%7C637481451516760280%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=jR2FpiEBp6toYM0L9Jh%2F2SvsFLRKRyVFrHhWRYyBiQY%3D&reserved=0> Instructions: http://www.ieee-pses.org/list.html (including how to unsubscribe)<https://eur01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.ieee-pses.org%2Flist.html&data=04%7C01%7C%7Cf1bd65beb30b4b56e63208d8ca00abdc%7C39288a38ff19432c80111cd9d0dff445%7C0%7C0%7C637481451516770237%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=MIwv30r%2BHjOPJVrIoIdHZ7bJ2x9Cr%2Fwa8%2FPVkKcIYKk%3D&reserved=0> List rules: http://www.ieee-pses.org/listrules.html<https://eur01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.ieee-pses.org%2Flistrules.html&data=04%7C01%7C%7Cf1bd65beb30b4b56e63208d8ca00abdc%7C39288a38ff19432c80111cd9d0dff445%7C0%7C0%7C637481451516770237%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=REuhVEXQsmq9H7H3Imn6INixfJr5RaZ8IhMGYQuj1u0%3D&reserved=0> For help, send mail to the list administrators: Scott Douglas <sdoug...@ieee.org<mailto:sdoug...@ieee.org>> 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>> [https://wilo-download.cdn.mediamid.com/footer/De_sustainability.jpg] <http://wilo.com/Deutscher-Nachhaltigkeitspreis> ________________________________ WILO SE Wilopark 1, 44263 Dortmund Amtsgericht Dortmund, HRB 21356 www.wilo.com Vorstand/Executive Board: Oliver Hermes (President & CEO), Dr. Patrick Niehr, Georg Weber, Mathias Weyers Aufsichtsratsvorsitzender/Chairman of the Supervisory Board: Prof. Dr. Norbert Wieselhuber Dieses Dokument ist vertraulich zu behandeln. Die Weitergabe sowie Vervielfaeltigung, Verwertung und Mitteilung seines Inhalts ist nur mit unserer ausdruecklichen Genehmigung gestattet. Alle Rechte vorbehalten, insbesondere fuer den Fall der Schutzrechtsanmeldung. This document has to be treated confidentially. Its contents are not to be passed on, duplicated, exploited or disclosed without our expressed permission. All rights reserved, especially the right to apply for protective rights. Datenschutz ist uns wichtig! Daher gehen wir sorgsam mit Ihren Daten um. Näheres finden Sie in unseren Datenschutzhinweisen<https://wilo.com/de/de/Wilo-Deutschland/Datenschutzhinweise.html>. Sollten Sie keinen Kontakt mehr mit uns wünschen, wenden Sie sich bitte an datensch...@wilo.com<mailto:datensch...@wilo.com>. Data Protection is important to us! Therefore we handle your data carefully. Please find the details in our Note on Data Protection<https://wilo.com/de/de/Note-on-data-protection.html>. If you do not wish to stay in touch with us anymore, please write to data-priv...@wilo.com<mailto:data-priv...@wilo.com>. - ---------------------------------------------------------------- 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 Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. 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: Scott Douglas <sdoug...@ieee.org> Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher: <j.bac...@ieee.org> David Heald: <dhe...@gmail.com>
