arpadveress 
13. Additionally, the present document is based on the life-cycle approach, which requires proper inspection, maintenance and repair of explosion protected equipment. This approach guarantees effective and efficient explosion protection and the elimination of potential ignition risk, at all times when a facility or product is in use.
Link: https://www.iecex.com/assets/Uploads/UNECE-CRO-en.pdf
Explosion protection / Ex hazardous area compliance is not just about purchasing one Ex item.
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Arpad
exprofessional.com
