ISO/IEC 17025 — Practical worksheet

Practical learning

Evaluate a laboratory method through validation, measurement uncertainty and metrological traceability. Use calibration evidence, quality-control results and a sample report; instrument calibration alone does not establish competence for every test.

Learning outcomes: choose suitable methods, distinguish validation from verification, evaluate traceability and interpret measurement uncertainty. Bring a method, instrument calibration, replicate results and a draft test report. In the exercise, a laboratory reports a near-limit result without explaining uncertainty or the applicable decision rule. Calculate or justify the relevant inputs and revise the report. Assessment checks method evidence and a reproducible result trail; one calibration certificate does not prove competence for every test in the laboratory.

Inputs for this worksheet

Use an anonymised, authorised example and identify the process, product or activity to which the exercise applies. Obtain the referenced edition or programme rules and record the applicable criterion before assessing a gap. Keep source records, assumptions and your proposed next action together. Do not submit confidential or personal records without permission; simulated inputs are suitable for this worksheet.

Check your evidence and its limits

Compare your answer with the stated evidence and failure case. A completed worksheet is a learning aid, not an audit report, an accredited assessment, a certification decision or product market authorisation. Any real decision requires the applicable rules, competent people and the responsible organisation or authority; this exercise creates no professional registration or certification powers. Kayra can discuss general learning objectives and agreed training exercises. This learning role does not include producing management-system manuals or procedures for a particular laboratory or certification body, or designing and implementing its system.

Official references

• ISO — 17025