Requirements for suppliers of calibration services

Answer:
Formally, it is not compulsory to pick an organization ISO 17025 accredited to perform calibrations. In practice, organizations can get nonconformances for not selecting ISO 17025 accredited organizations, when those organizations don’t show evidence of traceability to international standards, when those organizations don’t show evidence of procedures followed and don’t show the limits of confidence of the results. So, to avoid all those possible problems, organizations choose an accredited external provider of calibration services.

The following material will provide you information about calibration:
- ISO 9001 – Monitoring and Measurement Equipment Control - https://advisera.com/9001academy/blog/2014/05/06/monitoring-measurement-equipment-control/
- free online training ISO 9001:2015 Foundations Course – https://advisera.com/training/iso-9001-foundations-course/
- book - Discover ISO 9001:2015 Through Practical Examples - https://advisera.com/books/discover-iso-9001-2015-through-practical-examples/