Page 31 - 310 Metrics Effectively Using Metrics to Improve PS

Risk Based Process Safety (RBPS) Preventative Mitigative Discipline Source
Element Responsibility

Operate (BPCS) Critical Alarms Active Mitigation Passive Mitigation Emergency Res.

Cross- Engineering Operations Maintenance
referenced Process Safety Metrics Design
elements SIS
Operational Readiness
Percentage of start-ups X X X X X C
following plant changes
where no safety problems
related to the changes
were encountered during
recommissioning or start-
up
Management Changes implemented X X X G
of Change without management of
change or pre-startup
safety review

Conduct of Operations
Number of extended shifts X X X C
Asset Length of time plant is in X X X X X X C
Integrity production with items of
safety critical plant or
equipment in a failed state,
as identified by inspection
or as a result of breakdown
Fatigue risk education X X X X C
Percentage overtime X X X X C
Asset Activation of mechanical X X X X X X C
Integrity shutdown system
/Emergency
Management
Safe operating limit X X X X X C
excursions
Asset Activation of a safety X X X X X C
Integrity instrumented system
/Emergency
Management
Demands on safety X X X X X C
systems
Asset Activation of pressure X X X X X X C
Integrity relief device not counted
as a process safety incident
or loss of primary
containment
Asset Demand on safety critical X X X X X X I
Integrity elements

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Linking Metrics to Improve Process Safety Performance
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