Definition(s)
Symbol “X”
Symbol used to denote specific conditions of use.
Source: IEC 60079-19:2015, Explosive atmospheres – Part 19: Equipment repair, overhaul and reclamation, Edition 3.1, March 2015. Global Standards
Oil & Gas Drilling Glossary - IADCLexicon.org
Symbol used to denote specific conditions of use.
Source: IEC 60079-19:2015, Explosive atmospheres – Part 19: Equipment repair, overhaul and reclamation, Edition 3.1, March 2015. Global Standards