Zone de Texte: &; Testing laboratories shall have and shall apply procedures for estimating uncertainty for measurement. In certain cases the nature of the test may preclude rigorous, metrologically and statistically valid calculation of uncertainty of measurement. In these cases the laboratory shall at least attempt to identify all the components of uncertainty and make a reasonable estimation and shall ensure  that the form of reporting of the result does not give a wrong impression of the uncertainty. Reasonable estimation shall be based on knowledge of the performance of the method and on the measurement scope and shall make use of, for example, previous experience and validation data »
Iso 17025 point 5.4.6.2 – Estimation of uncertainty of measurement
Zone de Texte: Why evaluating measurement uncertainty ?

To compare results of analysis
To compare results to a standard
To help in reproducibility
Zone de Texte: Mesurement process / uncertainty evaluation Zone de Texte: &; Testing laboratories shall have and shall apply procedures for estimating uncertainty for measurement. In certain cases the nature of the test may preclude rigorous, metrologically and statistically valid calculation of uncertainty of measurement. In these cases the laboratory shall at least attempt to identify all the components of uncertainty and make a reasonable estimation and shall ensure  that the form of reporting of the result does not give a wrong impression of the uncertainty. Reasonable estimation shall be based on knowledge of the performance of the method and on the measurement scope and shall make use of, for example, previous experience and validation data »
Iso 17025 point 5.4.6.2 – Estimation of uncertainty of measurement
Zone de Texte: Why evaluating measurement uncertainty ?

To compare results of analysis
To compare results to a standard
To help in reproducibility
Zone de Texte: Mesurement process / uncertainty evaluation

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