Laboratory Internal Audit Services

An internal audit lets you find weaknesses before the accreditation body does. Our independent, technically in-depth audits keep your laboratory ready for any assessment.

The problem with box-ticking audits

Internal audit is required by ISO/IEC 17025 clause 8.8, yet in many laboratories it never goes beyond ticking a checklist. Real issues then surface for the first time during the accreditation visit.

  • Auditors auditing their own work, weakening impartiality
  • Only management system documents reviewed, technical records left out
  • Vague findings and corrective actions that are never followed up

Audit scope

Management system

Document control, risks and opportunities, nonconformities and corrective action, complaints, management review.

Technical requirements

Method validation, uncertainty, calibration and traceability, environmental conditions, QC and PT records.

Vertical audits

Selected reports traced back from issue to sample receipt.

Witnessing

Observing analysts perform tests and checking consistency with the method and records.

Our audit process

  1. Programme and plan: a risk-based annual programme and a plan for each audit.
  2. Preparation: document review and checklists tailored to your laboratory.
  3. On-site audit: opening meeting, record review, interviews, vertical audits and witnessing.
  4. Grading findings: nonconformities and observations clearly linked to the relevant clause.
  5. Report and closing: closing meeting and written audit report.
  6. Corrective action follow-up: root cause analysis and verification of effectiveness.

Audits follow ISO/IEC 17025 and the ISO 19011 guidelines for auditing management systems. For accreditation audit preparation we also run mock assessments in the accreditation body's format.

Train your own auditors

Our hands-on internal auditor training prepares your staff to audit using your laboratory's real records.

Deliverables

  • Annual internal audit programme and audit plan
  • Checklists tailored to your laboratory
  • Clause-referenced findings report
  • Corrective action tracker and close-out verification
  • Summary input for management review

Prepared by the Molar Çevre technical team · Last reviewed:

FAQ

Frequently asked questions

How is a laboratory internal audit carried out?

An annual programme and an audit plan are prepared, with checklists. After an opening meeting, records are reviewed, staff interviewed and tests observed; findings are graded, shared at a closing meeting and reported. Corrective actions are then followed up.

Why use an external internal auditor?

ISO/IEC 17025 requires auditors to be objective and impartial. In small laboratories, staff often end up auditing their own work. An external auditor also brings knowledge of common failure points seen in other laboratories.

How often should internal audits take place?

At planned intervals. Common practice is to cover the whole management system and technical scope at least once a year, with higher-risk processes audited more often.

What is a vertical audit?

Selecting one report and tracing it backwards — sample receipt, analyst, equipment and calibration records, calculations and approval. It is very effective at revealing breaks in the record chain.

Let's map out the roadmap for your laboratory

Book a free initial consultation: we'll review where you are today and prepare a tailored work plan and proposal.

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