In-depth process safety articles that go beyond the standard — exploring where methodology works, where it doesn't, and what experienced practitioners actually do about it.
A critical examination of the Smith 2020 methodology, VoPF inflation assumptions, and where quantitative ALARP arguments are strongest — and where they quietly unravel under pressure.
Double jeopardy in LOPA is one of the most misapplied concepts in risk assessment. Worked examples from real studies — including cases where it was incorrectly invoked to avoid a SIL requirement.
Inventory classification, Schedule 1 Part 2 aggregation rules, threshold calculations, and how to structure a defensible notification when your inventory sits close to the boundary.
The difference between determining a SIL target and verifying a design achieves it is fundamental — yet frequently blurred in practice. A breakdown of both, with common failure modes.
API 941 Nelson Curves define material suitability limits — but operating near the boundary involves uncertainty that the curves themselves don't quantify. A practical guide for engineers.
The VoPF is the foundation of quantitative ALARP assessment — but few engineers know its derivation, its limitations, or how inflation adjustment changes the conclusion. A full breakdown.
There is no shortage of process safety content that restates what the standard already says. HUMAIN Insights is written for practitioners who already know the standard and want to understand where it gets hard.
Every article is written by a qualified engineer with direct operational experience of the topic covered. No generalist content. No sponsored posts. No fluff.
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