Traceability in Chemical Measurement by Paul De Bièvre, Robert Kaarls, H. Steffen Peiser (auth.),

By Paul De Bièvre, Robert Kaarls, H. Steffen Peiser (auth.), Prof. Dr. Paul De Bièvre, Prof. Dr. Helmut Günzler (eds.)

Metrological traceability of chemical size effects capacity the institution of a relation to metrological acknowledged references via an unbroken chain of comparisons. This quantity collects fifty six striking papers at the subject, more often than not released within the interval 2000-2003 within the magazine "Accreditation and caliber Assurance". they supply the newest knowing, and doubtless the reason why you will need to combine the idea that of metrological traceability together with appropriate size criteria akin to qualified reference fabrics, into the traditional dimension systems of each analytical laboratory. additionally, this anthology considers the advantages to either the analytical laboratory and the person of the size results.

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A traceable measurement may fail as an appropriate measurement if its uncertainty is too large. Its quality will then be too low for the purpose. Conversely, it should be recognized that there are highly reproducible chemical measurements which are useful, but are not traceable to any standard. In metrology generally, and particularly in protocols for chemical measurements, a good measurement plan should tend to eliminate as many error sources as possible and to offset effects from different error sources.

10,11). A protocol in no way compromises the relevant freedom and obligations of applying professional knowledge, experience, integrity, and judgment. For many reasons, such as convenience in contractual understandings, a formally recognized protocol supporting the analysts’ work and explaining traceability of measurements may be helpful, advisable, or essential. Such formally recognized protocols may be in the form of standard methods developed and published by recognized bodies such as IUPAC, WHO, ISO, CEN, AOAC, ASTM, etc.

Laboratories implementing the protocol, perhaps under semi-routine conditions, cannot in practice devote the same time and care as that devoted by the initiating analyst in full awareness of the relevant responsibility of the initiator. 10,11). A protocol in no way compromises the relevant freedom and obligations of applying professional knowledge, experience, integrity, and judgment. For many reasons, such as convenience in contractual understandings, a formally recognized protocol supporting the analysts’ work and explaining traceability of measurements may be helpful, advisable, or essential.

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