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BSI PD ISO/TS 9516-2:2024

BSI PD ISO/TS 9516-2:2024

$215.11

Iron ores. Determination of various elements by X-ray fluorescence spectrometry – Single element calibration procedure

Published By Publication Date Number of Pages
BSI 2024 74
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PDF Catalog

PDF Pages PDF Title
2 undefined
7 Foreword
9 1 Scope
2 Normative references
3 Terms and definitions
10 4 Principle
5 Reagents and materials
12 6 Apparatus
13 7 Sampling and samples
7.1 Laboratory sample
7.2 Preparation of test samples
7.2.1 General
7.2.2 Method specified in ISO 2596
14 7.2.3 Method specified in ISO 7764
8 Procedure
8.1 General
15 8.2 Number of determinations
8.3 Check analysis and blank test
8.4 Preparation of discs
8.4.1 Weighing
16 8.4.2 Mixing
8.4.3 Fusion
8.4.4 Casting
8.4.5 Visual inspection
8.4.6 Disc storage
17 8.4.7 Cleaning of platinum ware
8.4.8 Test discs
8.5 Measurement
8.5.1 General
18 8.5.2 Effect of errors or omissions
19 8.5.3 Analytical lines
8.5.4 XRF generator settings
22 8.5.5 Crystals
8.5.6 Line overlaps
8.5.7 Collimators
8.5.8 Pulse height settings
8.5.9 Counting time
23 8.5.10 Simultaneous instruments
8.5.11 Sample holders
24 8.5.12 Measurement sequence
8.6 Drift correction
8.6.1 Preparation of drift correction monitor discs
25 8.6.2 Drift correction using monitor disc
27 9 Calculation of results
9.1 General
28 9.2 Calibration equation
31 9.3 Calculation of alpha coefficient
32 9.4 Correction for sample, flux and oxidizer mass
9.4.1 General
9.4.2 Correction of flux/sample mass ratio
9.4.3 Correction of remaining oxidizer/sample mass ratio
33 9.4.4 Mass ratio correction constant in calibration Equation 1
9.5 Calculation of calibration
9.5.1 Preparation of calibration discs
36 9.5.2 Calculation of concentrations of calibration discs
37 9.5.3 Measurement of calibration discs
9.5.4 Calculation of calibration coefficients
41 9.6 Calculation of concentrations
9.6.1 Calculation of flux/sample and remaining oxidizer/sample mass ratios
42 9.6.2 Calculation of initial concentration
9.6.3 Calculation of concentrations
43 9.6.4 Conversion from oxide to element concentrations
10 General treatment of results
10.1 Background equivalent concentration (BEC)
44 10.2 Determination of analytical result
10.3 Check for trueness
45 10.4 Calculation of the final result
46 10.5 Oxide factors
11 Test report
47 Annex A (normative) Preparation of Flux A and Flux D
49 Annex B (normative) Preparation of Flux B and Flux C
50 Annex C (normative) Standard deviation of specimen preparation
52 Annex D (normative) Spectrometer precision tests
56 Annex E (informative) Theoretical derivation of correction term in calibration
61 Annex F (informative) Calculation of correction coefficients using the FP method (fundamental parameter method)
64 Annex G (informative) Calculation of calibration coefficients and correction alphas by the least square method
68 Annex H (informative) Calculation of counting time
71 Annex I (informative) Air cooling block for fused discs
72 Annex J (normative) Flowchart for acceptance of results
73 Bibliography

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BSI PD ISO/TS 9516-2:2024
$215.11