science

Process safety management

Process safety management is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Process safety management rather than just read about it. In short: Process safety management (PSM) is a practice to manage business operations critical to process safety. It can be implemented using the established OSHA scheme or others made available by the EPA, AIChE's Center for Chemical Process Safety, or the Energy Institute.

Key takeaways

Process safety management belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Process safety management to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Process safety management from memory before moving on to harder problems.

Reference excerpt

Process safety management (PSM) is a practice to manage business operations critical to process safety. It can be implemented using the established OSHA scheme or others made available by the EPA, AIChE's Center for Chemical Process Safety, or the Energy Institute.

Elements PSM schemes are organized into 'elements', and different schemes are based on different lists of elements. The following is a typical set of elements that may be reconciled with most established PSM schemes. The first pillar is committing to process safety, which encompasses process safety culture, compliance with standards, process safety competency, workforce involvement, and stakeholder outreach. The second pillar is understanding hazards and risks , covering process knowledge and documentation management, as well as hazard identification and risk analysis. The third pillar is managing risk, and includes operating procedures, safe work practices (such as a permit-to-work system), asset integrity management, contractor management, training and performance assurance, management of change, operational readiness, conduct of operations, and emergency management. The fourth pillar is learning from experience, which comprises incident investigation, process safety metrics and performance measurement, auditing, and management review and continuous improvement.

Industry participation Alongside regulatory frameworks and industry standards, process safety management is implemented with support from private engineering and consulting firms that provide technical services such as hazard analysis, risk assessment, and management system support. Examples of organizations offering such services include IRESC Global, ABS Group, Jensen Hughes, and PSRG, which operate in sectors involving hazardous industrial processes.

References

Further reading Nwankwo, Chizaram D.; Theophilus, Stephen C.; Arewa, Andrew A. (May 18, 2020). "A Comparative Analysis of Process Safety Management (PSM) Systems in the Process Industry" (PDF). Journal of Loss Prevention in the Process Industries. 66. doi:10.1016/j.jlp.2020.104171. S2CID 219495043.

Worked examples

Example 1 — a first encounter with Process safety management

Start with the simplest possible case. Write down what Process safety management claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Process safety management before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Process safety management ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Process safety management

In research: Process safety management appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Process safety management in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Process safety management is common in secondary-school and first-year university syllabi. It links to neighbouring topics Management by type, Management stubs, Process safety, so understanding it makes those chapters shorter.
In everyday life: Look for Process safety management outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Process safety management in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Process safety management means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Process safety management out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Process safety management in simple terms?

Why does Process safety management matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Process safety management?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Process safety management.