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ANSI/ISA 84.91.01-2021
Identification and Mechanical Integrity of Safety Controls, Alarms, and Interlocks in the Process Industry
This standard addresses the instruments that are classified as process safety safeguards by the authority having jurisdiction (typically the owner/operator or local regulatory authority), and establishes requirements for their mechanical integrity, including inspection/testing and documenting the inspection/test results.
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The International Society of Automation [isa]
The International Society of Automation [isa]