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ISA 12.00.01-1999 PDF
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Electrical Equipment for Use in Class I, Zones 0,1, and 2 Hazardous (Classified) Locations – General Requirements standard by The International Society of Automation, 04/01/1999
Formerly S12.00.01-1999. Specifies the general requirements for construction, testing and marking of electrical apparatus for Class I, Zones 0 & 1 explosive gas atmospheres. This is a modified version of IEC 60079-0.
