Navigating an ISO 17025 audit can be a daunting process. Even with a robust quality system, non-conformities can and do occur. This guide will walk you through some of the most common audit findings and provide practical tips on how to prevent them.
Common Non-Conformities
- Inadequate Control of Records: This is a classic finding. Examples include missing signatures, un-dated amendments, and the use of outdated documents. Tip: Implement a simple document control system. A master list of documents with revision numbers and dates is a good start.
- Insufficient Detail in Test Methods: Your test methods should be detailed enough for a competent analyst to perform the test without ambiguity. Tip: Have a new analyst perform the test using only the documented method. If they have questions, your method needs more detail.
- Lack of Metrological Traceability: You must be able to demonstrate an unbroken chain of calibrations to a national or international standard. Tip: Ensure your calibration certificates are from an accredited calibration laboratory (ISO/IEC 17025).
- Failure to Perform Regular Internal Audits: Internal audits are a crucial part of the continual improvement process. Tip: Develop an audit schedule and stick to it. The schedule should be based on the importance of the activities and the results of previous audits.
Building a Resilient System
The goal is not to be perfect, but to have a system that can identify and correct its own weaknesses. A strong corrective action process is your best defense against recurring non-conformities. When a non-conformity is raised, take the time to do a thorough root cause analysis. Don't just fix the immediate problem; fix the system that allowed the problem to occur.