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ISO 17025 Internal Audit Checklist

Free ISO 17025 internal audit checklist — clause-by-clause prompts for 17025:2017 with conformity ratings, evidence, and a findings summary. Export to PDF.

Internal audits are a 17025 requirement (clause 8.8) — and the best way to make the real assessment boring. This checklist walks clauses 4 through 8 with plain-language prompts, conformity ratings, evidence fields, and a findings summary you can carry straight into corrective actions. The prompts are paraphrased summaries keyed to clause numbers; always audit against the full text of the standard. It autosaves in your browser and prints to a landscape PDF.

Audit Information

Lab / department

Audit date

Auditor(s)

Scope

Clause 4 — General Requirements

Clause	Requirement	Conformity	Evidence reviewed	Findings / notes
4.1	Lab activities are carried out impartially; risks to impartiality are identified and addressed
4.2	Customer information is kept confidential, with enforceable commitments in place

Clause 5 — Structural Requirements

Clause	Requirement	Conformity	Evidence reviewed	Findings / notes
5.1–5.3	Legal entity defined; management identified; scope of lab activities documented
5.5–5.7	Organization structure, responsibilities, and authorities are defined; communication processes exist

Clause 6 — Resource Requirements

Clause	Requirement	Conformity	Evidence reviewed	Findings / notes
6.2	Competence requirements documented for each role; training records current; authorizations in place
6.3	Facility and environmental conditions documented, monitored, and controlled where they affect results
6.4	Equipment is suitable, uniquely identified, and under a calibration program with status labeled
6.4	Intermediate checks performed where needed; out-of-service equipment clearly identified
6.5	Calibrations are metrologically traceable to the SI or suitable references
6.6	External providers (calibration, testing, supplies) are evaluated, approved, and monitored

Clause 7 — Process Requirements

Clause	Requirement	Conformity	Evidence reviewed	Findings / notes
7.1	Requests and contracts are reviewed; differences resolved before work begins; customer informed of changes
7.2	Methods are appropriate, current, and verified or validated before use
7.3	Sampling plans and methods documented where the lab performs sampling
7.4	Test items are uniquely identified, handled, and protected; abnormalities recorded
7.5	Technical records are sufficient to repeat the activity; changes are tracked with original data retained
7.6	Measurement uncertainty is evaluated where relevant
7.7	Result validity is monitored (QC checks, proficiency testing / interlab comparisons); trends acted on
7.8	Reports are accurate, clear, and include required content; amendments clearly identified
7.9	A documented complaints process exists and is followed
7.10	Nonconforming work is identified, evaluated, and managed with defined responsibilities
7.11	Data and information systems are validated, access-controlled, and backed up

Clause 8 — Management System Requirements

Clause	Requirement	Conformity	Evidence reviewed	Findings / notes
8.2–8.3	Management system documentation exists and documents are controlled (current versions available, obsolete removed)
8.4	Records are legible, retrievable, retained per policy, and protected
8.5	Risks and opportunities are considered and actions taken
8.6–8.7	Improvement opportunities are pursued; corrective actions address root cause with effectiveness review
8.8	Internal audits are conducted on a planned schedule covering all requirements; findings tracked to closure
8.9	Management reviews are held with required inputs and documented outputs

Findings Summary

Clause	Type	Finding	Action / owner	Delete

Checklist prompts are plain-language summaries keyed to ISO/IEC 17025:2017 clause numbers — always audit against the full text of the standard.

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