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ISO 8466-2:2001

Water quality - Calibration and evaluation of analytical methods and estimation of performance characteristics - Part 2: Calibration strategy for non-linear second-order calibration functions
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ISO 8466-2:2001

Water quality - Calibration and evaluation of analytical methods and estimation of performance characteristics - Part 2: Calibration strategy for non-linear second-order calibration functions

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It is not always possible to accurately describe the relationship between a set of calibration points with a rectilinear curve, even by decreasing the working range. Instead of the linear regression analysis, a least-squares fit to a second-order polynomial is applied (see test for linearity in 4.1.3 of ISO 8466-1:1990[1]). Using this fit, it is possible to calculate not only the calibration function but also the confidence interval associated with it.

This part of ISO 8466 is intended primarily for use in method development and may not necessarily be applicable to all routine analyses.

SDO ISO: International Organization for Standardization
Document Number ISO 8466
Publication Date Not Available
Language en - English
Page Count
Revision Level
Supercedes
Committee ISO/TC 147/SC 2
Publish Date Document Id Type View
Not Available ISO 8466-2:2001 Revision