caa a22 4500 605466130 CHVBK 20210128100305.0 cr unu---uuuuu 210128e20150401xx s 000 0 eng 10.1007/s00769-015-1110-y doi (NATIONALLICENCE)springer-10.1007/s00769-015-1110-y Estimation of reproducibility and measurement uncertainty of a viscosity test method from proficiency test data [Elektronische Daten] [Robert Visser, Cynthia Nijssen-Wester] 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. Springer-Verlag Berlin Heidelberg, 2015 Measurement uncertainty nationallicence Proficiency test nationallicence Method reproducibility nationallicence Kinematic viscosity nationallicence Fitness-for-purpose nationallicence Reproducibility limit nationallicence Reproducibility standard deviation nationallicence Visser Robert Institute for Interlaboratory Studies, SGS Nederland B.V., PO Box 200, 3200 AE, Spijkenisse, The Netherlands aut Nijssen-Wester Cynthia Institute for Interlaboratory Studies, SGS Nederland B.V., PO Box 200, 3200 AE, Spijkenisse, The Netherlands aut Accreditation and Quality Assurance Springer Berlin Heidelberg 20/2(2015-04-01), 125-129 0949-1775 20:2<125 2015 20 769 https://doi.org/10.1007/s00769-015-1110-y text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00769-015-1110-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Visser Robert Institute for Interlaboratory Studies, SGS Nederland B.V., PO Box 200, 3200 AE, Spijkenisse, The Netherlands aut NATIONALLICENCE 700 1- Nijssen-Wester Cynthia Institute for Interlaboratory Studies, SGS Nederland B.V., PO Box 200, 3200 AE, Spijkenisse, The Netherlands aut NATIONALLICENCE 773 0- Accreditation and Quality Assurance Springer Berlin Heidelberg 20/2(2015-04-01), 125-129 0949-1775 20:2<125 2015 20 769