prEN ISO 18227

SLOVENSKI STANDARD
01-november-2024
Trdni matriksi v okolju - Določanje elementne sestave z rentgensko fluorescenčno
spektrometrijo (ISO/DIS 18227:2024)
Environmental solid matrices - Determination of elemental composition by X-ray
fluorescence spectrometry (ISO/DIS 18227:2024)
Feststoffe in der Umwelt - Bestimmung der elementaren Zusammensetzung durch
Röntgenfluoreszenz (ISO/DIS 18227:2024)
Matrices solides environnementales - Détermination de la composition élémentaire par
spectrométrie de fluorescence X (ISO/DIS 18227:2024)
Ta slovenski standard je istoveten z: prEN ISO 18227
ICS:
13.030.10 Trdni odpadki Solid wastes
13.080.10 Kemijske značilnosti tal Chemical characteristics of
soils
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
International
Standard
ISO/DIS 18227
ISO/TC 190/SC 3
Environmental solid matrices —
Secretariat: DIN
Determination of elemental
Voting begins on:
composition by X-ray fluorescence
2024-09-23
spectrometry
Voting terminates on:
ICS: 13.080.10
2024-12-16
THIS DOCUMENT IS A DRAFT CIRCULATED
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Reference number
ISO/DIS 18227:2024(en)
DRAFT
ISO/DIS 18227:2024(en)
International
Standard
ISO/DIS 18227
ISO/TC 190/SC 3
Environmental solid matrices —
Secretariat: DIN
Determination of elemental
Voting begins on:
composition by X-ray fluorescence
spectrometry
Voting terminates on:
ICS: 13.080.10
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
PUBLISHED AS SUCH.
This document is circulated as received from the committee secretariat.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
© ISO 2024
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
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STANDARDS MAY ON OCCASION HAVE TO
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Published in Switzerland Reference number
ISO/DIS 18227:2024(en)
ii
ISO/DIS 18227:2024(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Safety remarks . 3
5 Principle . 3
6 Apparatus . 3
7 Reagents . 4
8 Interferences and sources of error . 5
9 Sample preparation . 5
9.1 General .5
9.2 Drying and determination of dry mass .5
9.3 Preparation of pressed pellet .6
9.4 Preparation of fused beads .6
10 Procedure . 7
10.1 Analytical measurement conditions .7
10.1.1 Wavelength dispersive instruments .7
10.1.2 Intensities and background corrections .7
10.1.3 Counting time .7
10.1.4 Energy dispersive instruments .7
10.1.5 Intensities and background corrections .7
10.2 Calibration .8
10.2.1 General .8
10.2.2 General calibration procedure .8
10.2.3 Internal standard correction using Compton (incoherent) scattering method .8
10.2.4 Fundamental parameter approach .9
10.2.5 Fundamental or theoretical influence coefficient method .9
10.2.6 Empirical alpha correction.10
10.2.7 Calibration procedure for trace elements using the pressed pellet method .10
10.2.8 Calibration procedure for major and minor oxides using the fused bead method . 12
10.3 Analysis of the samples . 13
11 Quality control .13
11.1 Drift correction procedure . 13
11.2 Blank test . 13
11.3 Reference materials . 13
12 Calculation of the result . 14
13 Test report . 14
Annex A (informative) Semi-quantitative screening analysis of waste, sludge and soil samples .15
Annex B (informative) Examples for operational steps of the sample preparation for soil and
waste samples .18
Annex C (informative) Suggested analytical lines, crystals and operating conditions .23
Annex D (informative) List of reference materials applicable for XRF analysis .25
Annex E (informative) Validation .26
Bibliography .36

iii
ISO/DIS 18227:2024(en)
Foreword
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