Comparison between IECEx and ATEX

Since the introduction of the IECEx On-Line Certificate of Conformity, late 2003, there has been a constant flow of inquires seeking an explanation of the differences between the IECEx Scheme and European ATEX System.

This document aims to provide a brief overview of the differences between the IECEx and the ATEX Systems relating to specific items that are commonly raised.
This document is not a full listing of the differences and is meant for information purposes with the rules of the IECEx Scheme and ATEX system taking precedence at all times.