Intertek Shares….
Our guide to hazardous location equipment marking provides manufacturers and end users a breakdown of equipment markings including International (IECEx), European (ATEX), and North American (NEC) requirements.
The guide outlines hazardous location markings, why they are required, and how to correctly apply them to products
https://www.intertek.com/knowledge-education/hazardous-locations/equipment-marking-guide/