DANSK DS/ISO 11352 PDF

This International Standard describes procedures for the estimation of measurement uncertainty based on validation data and analytical quality control results obtained within the field of water analysis. The principles of the estimation of uncertainty described in this International Standard are consistent with the principles described in ISO/IEC Guide 98-3 Guide to the expression of uncertainty in measurement (GUM). In this International Standard the quantification of measurement uncertainty rests upon performance characteristics of a measurement procedure obtained from validation and the results of internal and external quality control. The approaches described in this International Standard are mainly based on EURACHEM/CITAC-Guide Quantifying Uncertainty in Analytical Measurement (QUAM) [4], NEN 7779 [2], NORDTEST report TR 537 [3], and EUROLAB TR 1/2007 [1]. NOTE This International Standard only addresses the evaluation of measurement uncertainty for results obtained from quantitative measurement procedures. The uncertainties associated with results obtained from qualitative procedures are not considered.