Abstract
Measurement uncertainty is one of the key issues in quality assurance. It became increasingly important for analytical chemistry laboratories with the accreditation to ISO/IEC 17025. The uncertainty of a measurement is the most important criterion for the decision whether a measurement result is fit for purpose. It also delivers help for the decision whether a specification limit is exceeded or not. Estimation of measurement uncertainty often is not trivial. Several strategies have been developed for this purpose that will shortly be described in this chapter. In addition the different possibilities to take into account the uncertainty in compliance assessment are explained.
This is a preview of subscription content, log in via an institution.
Buying options
Tax calculation will be finalised at checkout
Purchases are for personal use only
Learn about institutional subscriptionsPreview
Unable to display preview. Download preview PDF.
References
A2LA (2002) Guide for the Estimation of Measurement Uncertainty In Testing, available from www.a2la.net
EA (2003) Guidelines on the Expression of Uncertainty in Quantitative Testing EA-4/16 (rev.00), available from www.european-accreditation.org
EURACHEM/CITAC (2000) Quantifying Uncertainty in Analytical Measurement, 2nd Edition, available from http://www.eurachem.org
EURACHEM/CITAC (2007) Use of uncertainty information in compliance assessment, available from http://www.eurachem.org
EUROLAB (2007) Measurement uncertainty revisited: Alternative approaches to uncertainty evaluation, available from www.eurolab.org
ILAC (2002) G17 - Introducing the Concept of Uncertainty of Measurement in Testing in Association with the Application of the Standard ISO/IEC 17025, available from www.ilac.org
ISO/IEC Guide 98:1995 Guide to the expression of uncertainty in measurement (GUM), also available as JCGM 100:2008 from www.bipm.org
ISO/IEC Guide 99:2007 International Vocabulary of Metrology - Basic and General Concepts and Associated Terms (VIM), 3rd edition, also available as JCGM 200:2008 from www.bipm.org
ISO/TS 21748:2004 Guidance for the use of repeatability, reproducibility and trueness estimates in measurement uncertainty estimation
LGC/VAM (2000) Development and Harmonisation of Measurement Uncertainty Principles Part(d): Protocol for uncertainty evaluation from validation data, available from www.vam.org.uk
Niemelä SI (2003) Uncertainty of quantitative determinations derived by cultivation of microorganisms. MIKES-Publication J4/2003, available from www.mikes.fi
NORDTEST (2004) Handbook for calculation of measurement uncertainty in nordtest.cfm environmental laboratories. Report TR 537 available from www.nordicinnovation.net/
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2010 Springer-Verlag Berlin Heidelberg
About this chapter
Cite this chapter
Koch, M. (2010). Measurement Uncertainty. In: Wenclawiak, B., Koch, M., Hadjicostas, E. (eds) Quality Assurance in Analytical Chemistry. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-13609-2_12
Download citation
DOI: https://doi.org/10.1007/978-3-642-13609-2_12
Published:
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-13608-5
Online ISBN: 978-3-642-13609-2
eBook Packages: Chemistry and Materials ScienceChemistry and Material Science (R0)