Risk Assessment Module Guide
How to correctly complete each assessment type.
Choose the right type
For most everyday tasks, use JSA or HAZID. For process industries use HAZOP or PSM, and for equipment failure analysis use FMEA.
Fill in the basic details
Enter the title, location, assessor, and assessment date so every record is traceable.
Log hazard items one by one
For each hazard, write the cause and consequence, use the hazard library for inspiration, then set likelihood and severity.
Add controls following the hierarchy
Prioritize controls from elimination down to PPE, then re-assess the residual risk after controls are applied.
Don't forget periodic review
Set the next review date so the assessment stays current as conditions change.
How is the risk matrix calculated?
In the general worksheets you choose the sentences that describe likelihood (1–5) and the worst credible severity (1–5); the company 5×5 matrix gives one of six levels (very low, low, medium, high, very high, extreme) and the required action. HAZID uses Fine's risk number, FMEA the RPN, and the chemical worksheet the Ministry of Health method when exposure was measured.
HAZID — risk number by Fine's method
For each hazard choose likelihood L (10, 6, 3, 1, 0.5, 0.1), consequence C (100, 50, 25, 15, 5, 1) and exposure E (10, 6, 3, 2, 1, 0.5). R = L × C × E is calculated automatically: 600 or more unacceptable (stop / do not start), 300–599 undesirable, 90–299 acceptable with review, below 90 minor. In the register these appear as extreme, high, medium and low.
Chemical — Ministry of Health semi-quantitative method
Hazard rate HR (1–5) is taken automatically from the H-statements, the carcinogen class (ACGIH / IARC) and pH. With a measured concentration: weekly exposure E = F × D × M / W (W = 40 h), ratio E / OEL → exposure rate ER (1–5), risk level RL = √(HR × ER) with its required actions, review period and the 70 % OEL sampling rule. Enter the OEL yourself from the national OEL book. Without a measurement, control banding and the company matrix are used as screening.
PSM — gap assessment against the 21 EIGA elements
The PSM worksheet lists the 21 elements of EIGA Doc 186/21 in four groups (leadership, risk identification, risk management, review and improvement). For each element choose compliant, partly compliant, not compliant or not applicable, write the evidence and, for a gap, its description, priority and action. Compliance is calculated automatically: compliant 100 %, partly 50 %, not compliant 0 %, not applicable left out — overall, per group and per implementation phase (phase 1 elements 1, 2, 4, 9, 12, 14, 17; phase 2 elements 3, 6, 7, 13, 15, 16; phase 3 the rest). Gaps appear in the risk register with their priority and can be sent to CAPA.
What is FMEA and the Risk Priority Number (RPN)?
Each failure mode is rated with the AIAG FMEA (4th ed.) ranking tables: Severity, Occurrence (choose it, or calculate it from the observed failure rate or the process capability Ppk) and Detection, each 1–10. RPN = S × O × D (1–1000) is the main result and is compared before and after the actions. The AIAG & VDA Action Priority (High / Medium / Low) is shown beside it and sets the risk level in the register. Severity 9–10 is always acted on first.
When is LOPA used?
For high-risk process industry scenarios with multiple independent protection layers (e.g. fire alarm, safety valve, operator). LOPA calculates the event frequency after all layers are applied and compares it to the target level.
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Which type should I choose?
- For everyday and job-related tasks: JSA or HAZID
- For process, equipment, chemical, or ergonomic industries: the specialized type in that category, or FMEA
- For major hazards with multiple control barriers: Bowtie (under the Incidents module) or LOPA