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ANSI/ISA-S12.0.01-1998: (IEC 79-0 Mod) Electrical Apparatus For Use In Class I, Zones 0 & 1 Hazardous (Classified) Locations General Requirements

This standard specifies the general requirements for construction, testing and marking of electrical apparatus for class I, Zones 0 & 1 explosive gas atmosphere and is supplemented.

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