Major Hazard Facilities Control Measures and Adequacy. Overview. The seminar has been developed to provide: Context with MHF Regulations An overview of what is required An overview of the steps required Examples of control measures and their adequacy. Some Abbreviations and Terms.
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The seminar has been developed to provide:
Controls DO fail and the consequences can be devastating
(Skikda, Algiers, 20 January, 2004)
. . . the risks associated with potential MAs
Example, consider a chlorine drum handling operation
Should be implemented. Little analysis required unless rejected.
More detailed justification required to reject
More detailed justification required to reject (lower priority)
Simple justification to reject
Sacrifice (cost, time, effort and inconvenience)
LowAFAP – Cost/Benefit & Rejecting Controls
For the initiating event
Of the components of any other control already claimed for the same scenario
The reliability, effectiveness and independence of a control must be auditableEffectiveness of Control Measures
To be considered a control, it must be:
Controls do fail and accidents occur as a result
Result of a fire at a bulk storage facility – was there adequate separation and fire protection?
A good management system
With adequate risk control measures
Reduces the risk of loss
Controls need to be service and situation dependent in
order to be suitable
Human controls should have the following requirements:
Examples of reduction (human) controls
Taken from “Layer of Protection Analysis, Simplified Process Risk Assessment, Centre for Chemical Process Safety, American Institute of Chemical Engineers, 2001”
The effectiveness of control measures in managing risk
Existing MHF Facility
New MHF Facility