BSI 20/30426694 DC 2020
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BS ISO 22940. Solid recovered fuels. Determination of elemental composition by X-ray fluorescence
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 43 |
This document specifies the procedure for a determination of major and minor element concentrations in solid recovered fuel material by energy dispersive X-ray fluorescence (EDXRF) spectrometry or wavelength dispersive X-ray fluorescence (WDXRF) spectrometry using a calibration with solid recovered fuel reference materials or solid recovered fuel samples with known content. A semi-quantitative determination may be carried out using matrix independent standards.
X-ray fluorescence spectrometry may be used as a fast method for a qualitative overview of elements and impurities and after suitable calibration it is very useful for determining major elements or even minor elements (except Hg) in order to quickly identify increased concentrations of minor elements in solid recovered fuels (e.g. during SRF-production).
This document is applicable for the following elements: Na, Mg, Al, Si, P, S, Cl, K, Ca, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, As, Br, Mo, Cd, Sb, Sn, Tl and Pb. Concentrations from approximately 0,000 1 % and above can be determined depending on the element, the calibration materials used and the instrument used.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 1 | 30426694 |
| 3 | C074198e |
| 6 | Foreword |
| 7 | Introduction |
| 9 | 1 Scope 2 Normative references 3 Terms and definitions |
| 11 | 4 Safety remarks 5 Symbols and abbreviated terms 5.1 Symbols |
| 12 | 5.2 Abbreviated terms 6 Principle 7 Apparatus |
| 13 | 8 Interferences and sources of error 9 Sample preparation 9.1 Preparation principles 9.2 Drying of general analysis sample material |
| 14 | 9.3 Preparation of pressed pellet 10 Procedure 10.1 Analytical measurement conditions 10.1.1 Wavelength dispersive instruments |
| 15 | 10.1.2 Energy dispersive instruments 10.1.3 Intensities and background corrections |
| 16 | 10.2 Calibration 10.2.1 General 10.2.2 General calibration procedure |
| 17 | 10.2.3 Calibration procedure using the pressed pellet method (recommended method) 10.3 Procedures for correcting matrix effect 10.3.1 Internal standard correction using Compton (incoherent) scattering method |
| 18 | 10.3.2 Fundamental parameter approach 10.3.3 Fundamental or theoretical influence coefficient method |
| 19 | 10.3.4 Empirical alpha correction 10.4 Analysis of the samples |
| 20 | 11 Quality control 11.1 Drift correction procedure 11.2 Reference materials and quality control samples 12 Calculation of the result 13 Performance characteristics |
| 21 | 14 Test report |
| 22 | Annex A (informative) Publicly available solid recovered fuel reference materials |
| 23 | Annex B (informative) Validation |
| 43 | Bibliography |
