Many analysts are aware of the traceability requirements of ISO 17025. Recent investigations carried out by LGC within the VAM programme have demonstrated the practical benefit of establishing the traceability of routine test results to chemical measurement standards of known quality. Hence all laboratories, regardless of whether their methods are accredited to ISO 17025, can benefit from implementing the principles needed to obtain traceable measurement results.
This guide provides essential practical advice to analysts and laboratory managers on how to establish the traceability of their results to reliable and appropriate measurement standards. Such traceability is the key to obtaining results that are fit-for-purpose, particularly in terms of accuracy, between-laboratory comparability, and consistency of data over periods of time. Following the guidance given here should ensure compliance with the traceability requirements of ISO 17025.
The main aim of the present guide is to provide an interpretation for analysts of the practical requirements associated with the recently published Eurachem/CITAC document
Traceability in Chemical Measurement. Hence the guide focuses on those essential practical steps involved in a typical analytical procedure for which traceability must be established, and explains how the analyst can judge what is required in their particular circumstances.