Implementing a Management System Based on ISO/IEC 17025
What implementation means
Implementation is behaviour change plus evidence, not document production. Assessors sample records to see whether the system was actually operated.
Core implementation activities
- Document only what is needed - 8.2 requires documentation proportionate to the activities; the mandatory documented procedures cluster around 7.1, 7.2, 7.3, 7.5, 7.8, 7.9, 7.10, 7.11, 8.3, 8.4, 8.5, 8.7, 8.8. Writing a bloated manual creates its own nonconformities.
- Competence and authorisation (6.2) - define competence criteria per role, train, then formally authorise named individuals for specific methods; retain the evidence.
- Equipment and traceability (6.4, 6.5) - build the equipment register, calibration programme, intermediate checks, and a traceability plan showing each measurement's chain to SI units via accredited calibration, certified reference material or a national metrology institute (see ILAC P10).
- Method implementation (7.2) - verification records for standard methods, validation records for others, documented and technically justified deviations accepted by the customer.
- Reporting (7.8) - templates must carry every element the clause lists: unique identification, laboratory identification, method, item description, dates of receipt and testing, results with units, authorisation signature, and the statement that results relate only to the items tested.
- Data integrity (7.11) - validate any LIMS or spreadsheet calculation before use, control access, and record changes.
- Suppliers (6.6) - selection, evaluation, monitoring and re-evaluation criteria, with records.
Worked example
For a mass calibration, the traceability plan names the reference weight, the accredited calibration certificate, the correction applied and its uncertainty contribution. When the assessor asks how traceability is demonstrated, the answer is the plan plus the certificate plus the uncertainty budget, not the supplier's marketing claim.
Traps that cost marks
- Rolling out forms without training, so records are completed incorrectly or not at all.
- Leaving LIMS validation to the final week.
- No documented procedure for 7.1 review of requests and contracts.
- Assuming an accredited supplier's certificate is automatically in scope for the quantity being calibrated.