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6 q&more articles about the topic measurement uncertaintyrss
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A new General Chapter addresses balances for analytical purposes
Weighing is one of the key activities carried out in every quality control (QC) laboratory. Usually it is one of the first steps in a whole analysis chain, e.g. when a sample or a standard is prepared for subsequent dilution and HPLC or qNMR analysis.
Ensuring comparability of clinical results is important in the age of globalization
World Metrology Day is celebrated annually on the 20th of May and this year’s focus on health provides an opportunity to emphasize the importance of comparable and reliable measurement results in laboratory medicine.
Metrological traceability: central concept of metrology and requirement of accreditation standards worldwide
Metrological traceability is necessary for consistent, comparable and valid measurement values. As a fundamental concept of modern-day metrology, it allows measurement results to be internationally recognized and is required by norms and accreditation standards all over the world. The ...
GWP® (Good Weighing Practice™) Life Cycle Management – 5 steps that support the Lean principles perfectly
A Lean Laboratory focuses on testing products and materials to deliver results in the most efficient way in terms of cost and speed. An accurate result for the customer is a pre-requisite. However, to guarantee accuracy of a weighing device over time requires using the correct balance as well as ...
Accreditation requirements for laboratories
Several key international standards for laboratories are currently being revised, of which DIN EN ISO/IEC 17025  is probably the most important. This will involve a number of changes for laboratories. Independently of revisions to standards, however, accreditation bodies are also ...
Milestones on the path to a new definition of the kilogram
It is now more than 30 years since attempts started to find a way of defining the kilogram based on an atomic constant or a fundamental physical constant. Since then, two methods have advanced sufficiently far to make it likely that there will be a new definition within the coming years, namely ...
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