Results 11 to 20 of about 269 (113)

Traceability and method validation in a photometry laboratory [PDF]

open access: yesInternational Journal of Metrology and Quality Engineering, 2011
This article displays how the photometry laboratory of the Portuguese Institute for Quality complies with the measurement traceability and method validation, the technical requirements 5.4 and 5.6 of the ISO/IEC 17025.
Pellegrino O., Pires C., Filipe E.
doaj   +1 more source

Practical considerations on redesigning internal quality control process to verify the traceability of clinical results for decision-making [PDF]

open access: yesJournal of Medical Biochemistry
Traceability is an important tool in the harmonization and standardization of reporting laboratory results, making them comparable across measurement systems.
Cheng Weizhi   +6 more
doaj   +1 more source

The role of metrology in the field of medical devices [PDF]

open access: yesInternational Journal of Metrology and Quality Engineering, 2011
Medical measurements are present in the everyday life of people and are fundamental processes in prevention, diagnosis and treatment of disease. Therefore, a growing interest lies in the role of metrological decisions and conformity assessment, namely ...
do Céu Ferreira M.
doaj   +1 more source

Metrological Traceability Concept for Electrolytic Conductivity and pH

open access: yesCHIMIA, 2009
The metrological traceability concept links measurement results by a chain of calibrations to the quantity values of primary standards, which are realised by primary measurement procedures.
Steffen Seitz   +3 more
doaj   +1 more source

Metrological traceability of oceanographic salinity measurement results [PDF]

open access: yesOcean Science, 2011
Consistency of observed oceanographic salinity data is discussed with respect to contemporary metrological concepts. The claimed small uncertainty of salinity measurement results traceable to the conductivity ratio of a certified IAPSO Standard Seawater ...
S. Seitz   +5 more
doaj   +1 more source

Absolute salinity determination by oscillation-type densimetry and refractometry

open access: yesInternational Journal of Metrology and Quality Engineering, 2022
The determination of salinity values from SI traceable densimetry and refractometry measurement results enable SI traceability of the former. In this work, a short study of the metrological compatibility of salinity determinations via these two methods ...
Furtado Andreia   +5 more
doaj   +1 more source

DESCRIPTION OF THE STANDARDIZATION PROCEDURE OF STANDARD VOLUME MEASURES AND ANALYSIS OF THE STABILITY OF THEIR METROLOGICAL CHARACTERISTICS [PDF]

open access: yesJournal of Engineering Science (Chişinău), 2022
The metrological characteristics of the measuring devices refer to the behavior of the measuring device in relation to the object under measurement, the environment and the human operator.
SABADAS, Anna, PIANIH, Alexei
doaj   +1 more source

Digital representation of measurement uncertainty

open access: yesMeasurement: Sensors, 2021
Successful digital transformation of measurement quality infrastructures must capture and share information about the metrological traceability of measurement results. So appropriate representations of measurement uncertainty, which is the cornerstone of
B.D. Hall, D.R. White
doaj   +1 more source

Metrological timelines in traceability

open access: yesMetrologia, 1997
There is a growing requirement for an internationally accepted system of recognition of measurement capabilities and relationships within and among countries, to facilitate seamless global commerce and trade. As a result, metrologists worldwide have recently developed increased interest in the concept and definition of traceability.
Ehrlich, Charles D.   +1 more
openaire   +2 more sources

Establishing SI-Traceability of Nanoparticle Size Values Measured with Line-Start Incremental Centrifugal Liquid Sedimentation

open access: yesSeparations, 2019
Line-start incremental centrifugal liquid sedimentation (disc-CLS) is a powerful technique to determine particle size based on the principles of Stokes’ law.
Vikram Kestens   +5 more
doaj   +1 more source

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