ISO 22940:2021 PDF

Scope: 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 semiquantitative determination can be carried out using matrix independent standards. This document is applicable to 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. Concentration levels between approximately 0,0001 % and 100 % can be determined depending on the element, the calibration materials used and the instrument used. NOTE X-ray fluorescence spectrometry can 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 (SRF), for example during SRF-production.

ISO 22940:2021 Referenced Document

ISO 21637 Solid recovered fuels - Vocabulary
ISO 21646 Solid recovered fuels — Sample preparation*， 2022-05-12 Update
ISO 21660-3 Solid recovered fuels - Determination of moisture content using the oven dry method - Part 3: Moisture in general analysis sample

2021 ISO 22940:2021 Solid recovered fuels — Determination of elemental composition by X-ray fluorescence