ISO 17025 is a quality management system and the main standard for testing and calibration laboratories. ISO 17025 shares many commonalities with ISO 9000 but ISO 17025 evaluates the technical competence in lab testing and calibration services and it applies to organizations that produce testing and calibration results.
To achieve ISO 17025 accreditation, the laboratory's quality management system and technical competence is evaluated thoroughly by a third-party. Audits are conducted on a regular basis to maintain accreditation. ISO 17025 accreditation can only be granted by an authorized accreditation body. Accreditation means that the laboratory has met the Management Requirements and Technical Requirements of ISO17025 and is deemed technically competent to produce calibration and testing results.
ISO 17025 Accreditation proves a laboratory has an acceptable quality management system in place, and it has the ability and competence to provide testing and calibration results. Accredited labs perform tests against the international standards (ISO 17025) and results are mutually acceptable between different governmental and regulatory organizations. The arrangement between accreditation bodies is that accredited members' test results will meet the same minimum quality standard regardless of the accreditation body and that the calibration results would be recognized as if they had performed the calibration themselves.
Requirement |
ISO 17025 |
NIST |
Accredited Program |
Yes |
No |
Equipment Traceability |
Yes |
Yes |
Quality assurance of test and calibration data |
Yes |
No |
Quality management system |
Yes |
No |
Environmental controls |
Yes |
No |
Technical competence of staff |
Yes |
No |
Risk Management System |
Yes |
No |
Proficiency testing of calibration equipment |
Yes |
No |
Internal and external audits |
Yes |
No |
System for the protection of client’s calibration data and information |
Yes |
No |
Uncertainty of measurements |
Yes |
No |
Procedure listed on certificate and available upon request to clients |
Yes |
No |