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SIS/SIF Decommissioning

While IEC 61511 devotes a separate clause to SIS Decommissioning, which highlights particular requirements for this activity, following the approach defined for “Modifications” will normally satisfy all those requirements – and has the main benefit that this avoids the need to set up a different set of procedures just for Decommissioning.

Note - that “Decommissioning” includes removal of a single SIF from a SIS, it isn’t restricted to Decommissioning of the entire process, though that too would be in scope.

What =Method can do for you

At =Method, we’d treat SIS or SIF Decommissioning as if it were a modification.


Functional Safety Lifecycle

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Most recent projects for Decommissioning

Stage 5 Functional Safety Assessment (FSA 5) on an offshore natural gas platform located in the southern North Sea.

Industry: Oil and Gas Offshore
Topic: Functional Safety Assessment (Stage 5)

1-day review to implement modification to remove a SIF

Industry: FMCG
Topic: Functional Safety Assessment (Stage 5)

FSA 5 for modification to chemical process

Industry: Chemical
Topic: Functional Safety Assessment (Stage 5)

FSA 5 of chemical plant installation of new SIF instrumentation.

Industry: Chemical
Topic: Functional Safety Assessment (Stage 5)

View all of our recent projects here

Functional Safety Consultancy

=Method's specialist, expert consultants support industries across the entire Functional Safety Lifecycle. If you need help please contact us.

Functional Safety Training

=Method delivers training in public venues, In-house and online. See more about how we deliver training here.


Functional Safety Lifecycle

Assessments at key Lifecycle Stages - Functional Safety Management

Planning throughout the Lifecycle - Functional Safety Management

Verification at every Lifecycle Stage - Functional Safety Management
FSA1
FSA2
FSA3
FSA4
FSA5
Hazard & Risk Assessment Allocation of Safety Funct's to Protection Layers Safety Requirements Specification Design & Engineering Installation, Commissioning & Validation Operation & Maintenance Modification Decommission
Functional Safety Management
Functional Safety Audit
What is Functional Safety?What is functional safety?
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