Risk Assessment Methods
Formal risk assessment methods beyond the basics: risk vocabulary, perception and risk criteria, choosing a method under provincial OHS law, the E2 Regulations, CSA Z1002, Z1000 and Z767 and IEC 31010, job hazard and task analysis, risk matrix design and calibration, what-if and checklist reviews, HAZOP, FMEA and FMECA, bowtie analysis and critical control management, fault and event trees, LOPA and safety integrity levels under IEC 61511, quantitative risk assessment with MIACC land use criteria and ALARP cost-benefit, and managing assessments with a capstone workshop. Practitioner introduction; not HAZOP facilitator or SIL certification.
HSE-223 12 lessons · 6 h 4 min
Offered by HSM University · Safety Training
This is the Canadian version of this course. See the American version.
What you'll learn
- Distinguish hazard, risk, frequency and probability, and explain how risk criteria and ALARP are used to judge risk.
- Explain how Canadian OHS law, the E2 Regulations, CSA Z1002, Z1000 and Z767 and IEC 31010 shape the choice of risk assessment method.
- Prepare a job hazard analysis using hierarchical task analysis, energy-based hazard descriptions and before-and-after risk ratings.
- Design and calibrate a risk matrix with numerical, logarithmic categories and explain its main limitations.
- Plan and record a what-if, checklist or combined what-if/checklist review and track its recommendations.
- Take part in a HAZOP by applying guidewords to nodes with a written design intent and judging the independence of safeguards.
- Complete an FMEA, calculate risk priority numbers and explain why action priority weights severity first.
- Build a bowtie with valid barriers and explain how critical control management verifies those barriers.
- Calculate simple fault tree and event tree results, identify minimal cut sets and allow for common cause failure.
- Carry out an awareness-level LOPA calculation and relate the required risk reduction to safety integrity levels.
- Interpret individual and societal risk results from a quantitative risk assessment and apply cost-benefit reasoning within ALARP.
- Manage risk assessments as a system, counter common biases in workshops and combine several methods on one facility.
Course content
12 lessons · 6 h 4 min total · final exam
- 1 From hazard to risk: definitions, perception and risk criteria 30 min · quiz
- 2 Choosing a method: legal duties, standards and the technique toolbox 29 min · quiz
- 3 Job hazard and task analysis in depth 32 min · quiz
- 4 Risk matrices: design, calibration and limits 31 min · quiz
- 5 What-if and checklist reviews 31 min · quiz
- 6 HAZOP: nodes, guidewords and deviations 31 min · quiz
- 7 FMEA and FMECA 30 min · quiz
- 8 Bowtie analysis and critical control management 31 min · quiz
- 9 Fault tree and event tree analysis 32 min · quiz
- 10 LOPA and safety integrity levels 28 min · quiz
- 11 Quantitative risk assessment, tolerability and ALARP 29 min · quiz
- 12 Managing risk assessments, human factors and capstone: a chemical storage workshop 30 min · quiz
- E Final exam 20 questions
Requirements
Recommended background. You can start any course at any time.
Description
Formal risk assessment methods beyond the basics: risk vocabulary, perception and risk criteria, choosing a method under provincial OHS law, the E2 Regulations, CSA Z1002, Z1000 and Z767 and IEC 31010, job hazard and task analysis, risk matrix design and calibration, what-if and checklist reviews, HAZOP, FMEA and FMECA, bowtie analysis and critical control management, fault and event trees, LOPA and safety integrity levels under IEC 61511, quantitative risk assessment with MIACC land use criteria and ALARP cost-benefit, and managing assessments with a capstone workshop. Practitioner introduction; not HAZOP facilitator or SIL certification.