Page 32 - 310 Metrics Effectively Using Metrics to Improve PS
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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
                 Conduct of Operations
                 Asset        Barriers failing  on demand  X  X  X   X                  X    X    X       I
                 Integrity
                 Asset        Critical alarms per      X    X   X                       X    X            I
                 Integrity    operator hour
                 Asst Int     Standing alarms          X    X   X                       X    X            I
                 Asset        Challenges to safety     X    X        X                  X    X           G
                 Integrity    systems
                 Operating    Safe operating limit     X    X   X                       X    X           G
                 Procedures/   excursions
                 Operating    Demands on safety        X    X   X    X                  X    X           G
                 Procedures/   systems
                 Asset
                 Integrity
                 Asset        Average (and/or maximum)  X   X   X                       X    X           G
                 Integrity    alarm rate
                              Fatigue risk             X    X                           X    X   X       G
                              education/awareness
                              Monitoring overtime and   X   X                           X    X   X       G
                              extended shifts
                              Ensuring adequate        X    X                           X    X   X       G
                              manpower is in place for
                              all shifts
                 Operating    Quality of, and adherence     X                           X    X           G
                 Procedures/   to, operating procedures
                 Safe Work
                 Practices
                 Operating    Failure to follow             X                                X   X      C / G
                 Procedures/   procedures/safe working
                 Safe Work    practices
                 Practices    (nonconformance)
                 Management of Change
                              Percentage of audited    X    X                           X    X   X       C
                              changes that used the
                              site’s MOC procedure prior
                              to making the change
                              Percentage of audited    X    X                           X    X   X      C / G
                              MOCs that satisfied all
                              aspects of the site’s MOC
                              procedure





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                                      Linking Metrics to Improve Process Safety Performance
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