Results 11 to 20 of about 80,246 (200)

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   +3 more sources

Metrological Traceability Concept for Electrolytic Conductivity and pH [PDF]

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   +2 more sources

Metrological traceability of touch voltage measurements using FSM concept in the high-voltage facility [PDF]

open access: yesTehnika
In order to avoid interruption of service and costly downtime, touch voltage measurements are usually performed in an energized high-voltage substation.
Kostić Vojin I.   +2 more
doaj   +2 more sources

Three Steps towards Metrological Traceability for Ballistics Signature Measurements [PDF]

open access: yesMeasurement Science Review, 2010
The National Institute of Standards and Technology (NIST) in collaboration with the Bureau of Alcohol, Tobacco, Firearms, and Explosives (ATF) has developed the Standard Reference Material (SRM) bullets and casings.
Song J.   +7 more
doaj   +2 more sources

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 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

Estimation of the measurement uncertainty and practical suggestion for the description of the metrological traceability in clinical laboratories [PDF]

open access: yes, 2020
Clinicians request a large part of measurements of biological quantities that clinical laboratories perform for diagnostic, prognostic or diseases monitoring purposes.
García Tejada, Laura   +11 more
core   +1 more source

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