ISA S12.1-1991
Definitions and Information Pertaining to Electrical Instruments in Hazardous (Classified) Locations

Standard No.

ISA S12.1-1991

Release Date

1991

Published By

ISA - International Society of Automation

Status

Withdraw 2001-08

Latest

ISA S12.1-1991

ISA S12.1-1991 history

• 1991 ISA S12.1-1991 Definitions and Information Pertaining to Electrical Instruments in Hazardous (Classified) Locations