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1. Need for external recognition
The main aim of the assessment is to gather factual evidence and provide guarantees on the relevance of measurement results produced by laboratories or inspection bodies, where these have a significant influence on the outcome of the inspection.
For this guarantee to be accepted, the results of measurements must be comparable, at different times, in different places and with different personnel, within the measurement uncertainties. When it comes to testing or analysis, we aim to use the same method, so that the protocol does not introduce any new uncertainty components.
The importance of identifying the causes of uncertainty (components) cannot be over-emphasized. Sampling is one of the main causes of uncertainty in analytical chemistry, or in biology. If the analyzed part is not representative of the original "material", it is no longer...
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Need for external recognition
Normative requirements external to the company
Bibliography
Standards
- International Vocabulary of Metrology — Fundamental and general concepts and associated terms (VIM) - JCGM. - VIM -
- Conformity assessment — Vocabulary and general principles. - ISO/CEI 17000 -
- Guide pratique pour la validation, le contrôle qualité, et l'estimation de l'incertitude d'une méthode d'analyse œnologique alternative. - Résolution OIV/Oeno -
- Quality management systems — Requirements - ISO 9001...
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Producers of reference materials
IAEA (International Atomic Energy Agency – Agence Internationale pour l'Energie Atomique) http://www.iaea.org
BAM (Bundesanstalt für Materialforschung und -prüfung) – Germany http://www.bam.de
IRMM (Institute...
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