NDLI: Estimation of reproducibility and measurement uncertainty of a viscosity test method from proficiency test data

Content Provider	Springer Nature Link
Author	Visser, Robert George Nijssen Wester, Cynthia
Copyright Year	2015
Abstract	Evaluation of laboratory test results in a proficiency test should preferably be done against a predetermined standard deviation. This standard deviation may be derived from the reproducibility of a standardized test method. However, in practice, the respective test method may lack precision data. The often used alternative, the use of a characteristic function, of which the Horwitz function is the most well known, is only applicable for chemical parameters where the concentration of an analyte is measured. For physical parameters, like viscosity, the concentration-dependent functions cannot be used. In this article, an example is presented on the estimation of the reproducibility (reproducibility limit R) and the measurement uncertainty of a viscosity test method from historical proficiency test data.
Starting Page	125
Ending Page	129
Page Count	5
File Format	PDF
ISSN	09491775
Journal	Accreditation and Quality Assurance
Volume Number	20
Issue Number	2
e-ISSN	14320517
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2015-02-24
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Measurement uncertainty Proficiency test Method reproducibility Kinematic viscosity Fitness-for-purpose Reproducibility limit Reproducibility standard deviation Analytical Chemistry Food Science Biochemistry Commercial Law Ecotoxicology Marketing
Content Type	Text
Resource Type	Article
Subject	Chemistry Instrumentation Chemical Engineering Safety, Risk, Reliability and Quality

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