Assessing quality system

Where you start assessing your quality system will depend on what you currently have in place. If you already have a management system documented, that meets the requirements, for example, of ISO 9001 or ISO 13485, then you would perform a gap assessment against the requirements of ISO 17025.

I suggest you start with the project plan. You can download a free Project Plan for ISO 17025:2017 implementation at https://info.advisera.com/17025academy/free-download/project-plan-for-iso-17025-implementation. The ISO 17025 toolkit has an Internal Audit checklist that can be used for this purpose. You can preview it from https://advisera.com/17025academy/iso-17025-documentation-toolkit, under “Performance and Evaluation”. It is also available for separate purchase.
For more information on ISO 17025 requirements, download the free whitepaper Clause-by-clause explanation of ISO 17025:2017 at https://info.advisera.com/17025academy/free-download/clause-by-clause-explanation-of-iso-17025