Monitoring and measurement of an EMS based on ISO 14001
This domain tests clause 9: monitoring, measurement, analysis, evaluation, compliance evaluation, internal audit, and management review. The exam distinguishes monitoring data from evaluation against criteria.
Core rules
- Determine what to monitor, methods, criteria, timing, and when results are analysed and evaluated.
- Use calibrated or verified monitoring equipment and retain records.
- Evaluate environmental performance against objectives, operational controls, and compliance obligations.
- Evaluate compliance status at planned intervals and maintain knowledge of the compliance obligations.
- Conduct internal audits at planned intervals to determine whether the EMS conforms and is effectively implemented.
- Hold management review covering status of actions, changes, performance, compliance, audits, and improvement opportunities.
Worked example
A factory monitors wastewater pH continuously. The probe is calibrated monthly; results are reviewed daily against permit limits. A pH exceedance triggers investigation, correction, and corrective action. Monthly data are analysed for trends, and management review examines exceedances and objective progress. This shows monitoring, measurement, evaluation, and action, not just a spreadsheet.
Traps
Monitoring without evaluating against criteria; confusing compliance evaluation with updating the legal register; treating an audit finding as automatically a nonconformity; using uncalibrated equipment; and holding management review as a status update with no decisions or actions.