ISA TR18.2.5-2012

This technical report was written in support of the standard ANSI/ISA-18.2-2009, Management of Alarm Systems for the Process Industries (June 2009). This technical report is designed to provide guidance, rationale, and examples of Ala rm Monitoring and Assessment, (Clause 16 of ISA-18.2) and Audit (Clause 18 of ISA-18.2).

This technical report provides guidance and information supplementing ISA-18.2 on the use of alarm system analysis for both ongoing monitoring and periodic performance assessment. Monitoring, assessment, and audit are essential to achieving and maintaining the performance objectives of the alarm system. These activities can identify improvement opportunities in the other lifecycle stages, such as philosophy, rationalization, detailed design, implementation, operation, maintenance, and management of change.