New hazards start unassessed. Deliberately score initial risk, document the 3-step measures and then assess residual risk; no residual reduction is assumed. Name each safety function before any indicative PLr is shown. Checklist statuses are user declarations only, not verified evidence of compliance, conformity or permission to operate/place on the market.
Select a generic reference template. Nothing is added until you apply it, and all site-specific limits and risk ratings must be validated locally.
Define the machine's limits before identifying hazards — this scopes the assessment.
Tick the hazards present for this task. They feed the risk register below.
For each hazard: score the initial risk (S×F×P), apply the 3-step risk-reduction method, re-score the residual risk, and read off the required Performance Level (PLr) from the ISO 13849-1 Annex A risk graph. PLr is the REQUIRED Performance Level for the safety function — not the achieved PL. Verifying that your control system reaches it (PL / category / MTTFd / DC / CCF) is a separate step, e.g. with SISTEMA.
For equipment used at work in Great Britain. Mark each as OK / Action / N/A.
Applies from 20 January 2027, replacing the Machinery Directive 2006/42/EC. Mark each as Ready / Gap / N/A.
⚠️ This tool helps structure a machinery risk assessment to the methodology of ISO 12100 and the risk-graph of ISO 13849-1 Annex A — it is not legal advice and not a substitute for the standards themselves. The S/F/P risk graph is the informative Annex A approach and gives an indicative required Performance Level (PLr); other methods (e.g. IEC 62061 SIL) exist. This tool returns the REQUIRED PL only — it does not verify the achieved PL of your safety-related control system (use SISTEMA or equivalent). Confirm wording, parameters and dates against the current official texts (ISO 12100:2010, ISO 13849-1:2023, PUWER 1998, Regulation (EU) 2023/1230) and have a competent person review the result before relying on it.
Basic tools and input data remain here. Nothing is transferred automatically.
Optional local copy of this tool's entered data only.