Layer of Protection Analysis¶
Center for Chemical Process Safety. (2001). Layer of Protection Analysis: Simplified Process Risk Assessment. Wiley.
Cited by¶
1 citation across 1 artifact.
Each citation links to the sentence it supports in the citing article.
Mechanisms¶
- Independent Interlock or Guard
- An interlock that quietly shares a power supply, a sensor, or a logic solver with the barriers it backs up collapses, under the right common fault, into a single point of failure — and worse, one the organization has credited as a separate layer.
This sourceTreats a protection layer as independent only when it does not share dependencies with the initiating event or other credited layers, because common-cause failure defeats separate risk credit.
- An interlock that quietly shares a power supply, a sensor, or a logic solver with the barriers it backs up collapses, under the right common fault, into a single point of failure — and worse, one the organization has credited as a separate layer.
Verification¶
Does it exist? Confirmed. This work's DOI resolves to a registered record, which fixes its identity. That is all it fixes.
Does it back the claim? Not recorded. The single citation of this work carries no recorded support check.
Support is checked per citation rather than per work — the same source can be cited soundly in one article and wrongly in another. Per-citation recording began recently, so a citation with no recorded check is a gap in the record rather than evidence it went unchecked.
See how references were verified.
Registry ID ref:2b2a9aefd370 · see in the full table