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BS ISO 8466-1:2021

BS ISO 8466-1:2021

$189.07

Water quality. Calibration and evaluation of analytical methods – Linear calibration function

Published By Publication Date Number of Pages
BSI 2021 50
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PDF Catalog

PDF Pages PDF Title
2 undefined
6 Foreword
7 Introduction
8 1 Scope
2 Normative references
3 Terms and definitions
9 4 Symbols
11 5 Determination of the linear working range and establishment of the calibration range
5.1 General
5.2 Preliminary choice of working range
5.3 Estimation of the linear working range
5.3.1 General
12 5.3.2 Visual testing of measurement data — Testing using the x/y-diagram
5.3.3 Estimation of the linear range by calculating the point-to-point slope
13 6 Calibration strategies
6.1 General
15 6.2 Calculation of the calibration function
16 6.3 Calibration of the measuring method using an external standard, including determination of the recovery rate of the analyte
6.3.1 General
6.3.2 Establishing the calibration function
17 6.3.3 Determination of the recovery rate
6.3.4 Calculation of results
18 6.4 Calibration of the measuring method using an internal standard, including determination of the recovery rate of the internal standard
6.4.1 General
6.4.2 Establishing the calibration function
6.4.3 Determination of the recovery rate
19 6.4.4 Calculation of results
6.5 Calibration of the total procedure using an external standard
6.5.1 General
6.5.2 Establishing the calibration function
20 6.5.3 Calculation of results
6.6 Calibration of the total procedure using an internal standard
6.6.1 General
6.6.2 Establishing the calibration function
21 6.6.3 Calculation of results
6.7 Standard addition
6.7.1 General
6.7.2 Procedure
22 6.7.3 Calculation of results
23 7 Strategies for testing the validity of calibration
7.1 General
7.2 Testing by means of a control solution or control sample
7.3 Testing the slope of the calibration line
24 Annex A (informative) Goodness-of-fit test according to Mandel, standard deviation of the procedure, variation coefficient of the procedure and confidence interval
27 Annex B (informative) Examples of linearity testing
39 Annex C (normative) Examination of the linear working range using the empirical test of curvature
46 Annex D (informative) Weighted regression — Weighting 1/x
48 Bibliography

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BS ISO 8466-1:2021
$189.07