Quantifying Uncertainty in Analytical Measurement, 3rd Edition (2012)
This guide has been produced by a joint EURACHEM/CITAC Measurement Uncertainty Working Group.
The first edition of the EURACHEM Guide for “Quantifying Uncertainty in Analytical Measurement” was published in 1995 based on the ISO "Guide to the Expression of Uncertainty in Measurement". The second edition was prepared in collaboration with CITAC in 2000 in the light of practical experience of uncertainty estimation in chemistry laboratories and the even greater awareness of the need to introduce formal quality assurance procedures by laboratories. The second edition stressed that the procedures introduced by a laboratory to estimate its measurement uncertainty should be integrated with existing quality assurance measures, since these measures frequently provide much of the information required to evaluate the measurement uncertainty.
This third edition retains the features of the second edition and adds information based on developments in uncertainty estimation and use since 2000. The additional material provides:
- Improved guidance on the expression of uncertainty near zero;
- New guidance on the use of Monte Carlo methods for uncertainty evaluation;
- Improved guidance on the use of proficiency testing data:
- Improved guidance on the assessment of compliance of results with measurement uncertainty.
The guide therefore provides explicitly for the use of validation and related data in the construction of uncertainty estimates in full compliance with the formal ISO Guide principles set out in the ISO Guide to the Expression of Uncertainty in measurement. The approach is also consistent with the requirements of ISO/IEC 17025:2005.
You may download the guide from this website at no cost (pdf, 1908 kB) .
This guidance should be cited* as
"S L R Ellison and A Williams (Eds). Eurachem/CITAC guide: Quantifying Uncertainty in Analytical Measurement, Third edition, (2012) ISBN 978-0-948926-30-3. Available from www.eurachem.org."
*Subject to journal requirements.
No translations of the Third Edition are yet available.
Production of the guide was supported by the UK National Measurement System.
Any comment or query about the content of this guide should be directed to the Working Group Secretary.
- Last Updated: Thursday, 09 April 2015 01:27