Glossary · definition
Metrological traceability
The property of a measurement result whereby it can be related to a reference through a documented, unbroken chain of calibrations, each contributing to the measurement uncertainty.
See also:CalibrationMeasurement uncertaintyISO/IEC 17025
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Articles on Metrological traceability
Metrological traceability explained
Traceability means a result can be related to the SI through an unbroken, documented chain of calibrations, each with a stated uncertainty. Here is what that requires in practice.
Metrological traceability in ISO/IEC 17025 (clause 6.5)
Results must be traceable to the SI through calibration by a competent laboratory, certified values of certified reference materials, or direct realisation of SI units.