7
GasAlertMicro 5/PID/IR
Sensor Poisons and Contaminants
Table 3. International Symbols
Symbol Description
n
Approved to both U.S. and Canadian Standards by CSA International
g
European Explosives Protection
X
Conforms to European Union Directives
ATEX
Conforms to European ATEX Directives
IECEx
International Electrotechnical Commission Scheme for Certification to Standards for Electrical Equipment for
Explosive Atmospheres
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