Hello Carl,
Despite the risk of posting to a stale thread, I do understand your question. You are trying to comply with 80079-34, 4.2.3 i) "the manufacturer shall have a documented process to annually check the validity of all Ex related certificates, standards, regulations and other external specifications."
The two concerns would be 1.) in which procedure do you describe this review? 2.)by what manner do you conduct the review?
1.) Note that this is a document control issue, so I like the idea of putting it in that procedure. You could simply add a review step.
2.)The intention is to note updates to the product related standards that would cause your Ex certificate to be out of compliance with the latest standard's requirements, so you want to review any changes to the ones used in past product investigations: 60079-1 ("d"), 60079-11 ("i"), 60079-15 ("n"), etc. You could compare the latest releases to what you've got (for example
www.iec.ch, or global engineering documents, or whatever) and view the updates section. If you don't like that, you could always browse
http://www.iecex.com/news_releases.htm or the decisions section of that site. Consider what might be out of date not only with your product design, but also reviewing any IECEx component that you use, manufactured by another company. Compare the standards cited in their certificate to what you have discovered to be current. Then see if there are any gaps. You also want to update new standards versions in your external document collection so that current design activities are done to the latest standards.
