Major Hazard Management: Technical-Management Links and the AVRIM 2 Method

Abstract

In the Netherlands the legislation and guidance for implementing Seveso II uses, amongst other things, concepts from AVRIM2 in order to develop specific requirements for companies to describe scenarios, and for these scenarios to be used by companies as a basis for demonstrating that the major hazard management system works. One of the features of the approach to be taken by both the Labour Inspectorate and by the companies is the use of a limited part of the technical system of a major hazard site to examine the entire major hazard management system in depth. Another aspect is to target potential weak spots in the management system by first considering site specific scenarios. The AVRIM2 software tool supports this approach by providing direct links (in the form of checklists) between lines of defence (LODs) against loss of containment (LOC) scenarios on the one hand and relevant components of the management system across the four life cycle phases (design, construction, operations and maintenance) on the other. This paper explains the approach and gives examples of links as used in AVRIM2.

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