EN ISO 4943:2022

SLOVENSKI STANDARD
01-november-2022
Nadomešča:
SIST EN 24943:1997
SIST EN 24943:1997/AC:1997
Jeklo in lito železo - Določevanje bakra - Plamenska atomska absorpcijska
spektrometrična metoda (ISO 4943:2022)
Steel and cast iron - Determination of copper content - Flame atomic absorption
spectrometric method (ISO 4943:2022)
Stahl und Gusseisen - Bestimmung des Kupfergehalts -
Flammenatomabsorptionsspektrometrisches Verfahren (ISO 4943:2022)
Aciers et fontes - Détermination de la teneur en cuivre - Méthode par spectrométrie
d'absorption atomique dans la flamme (ISO 4943:2022)
Ta slovenski standard je istoveten z: EN ISO 4943:2022
ICS:
77.040.30 Kemijska analiza kovin Chemical analysis of metals
77.080.01 Železne kovine na splošno Ferrous metals in general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 4943
EUROPEAN STANDARD
NORME EUROPÉENNE
September 2022
EUROPÄISCHE NORM
ICS 77.080.01 Supersedes EN 24943:1990, EN 24943:1990/AC:1991
English Version
Steel and cast iron - Determination of copper content -
Flame atomic absorption spectrometric method (ISO
4943:2022)
Aciers et fontes - Détermination de la teneur en cuivre - Stahl und Gusseisen - Bestimmung des Kupfergehalts -
Méthode par spectrométrie d'absorption atomique Flammenatomabsorptionsspektrometrisches
dans la flamme (ISO 4943:2022) Verfahren (ISO 4943:2022)
This European Standard was approved by CEN on 5 August 2022.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 4943:2022 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 4943:2022) has been prepared by Technical Committee ISO/TC 17 "Steel" in
collaboration with Technical Committee CEN/TC 459/SC 2 “Methods of chemical analysis for iron and
steel ” the secretariat of which is held by SIS.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by March 2023, and conflicting national standards shall
be withdrawn at the latest by March 2023.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 24943:1990, EN 24943:1990/AC:1991.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO 4943:2022 has been approved by CEN as EN ISO 4943:2022 without any modification.

INTERNATIONAL ISO
STANDARD 4943
Second edition
2022-08
Steel and cast iron — Determination
of copper content — Flame atomic
absorption spectrometric method
Aciers et fontes — Détermination de la teneur en cuivre — Méthode
par spectrométrie d'absorption atomique dans la flamme
Reference number
ISO 4943:2022(E)
ISO 4943:2022(E)
© ISO 2022
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
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Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
ISO 4943:2022(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Reagents . 1
6 Apparatus . 2
6.1 Atomic absorption spectrometer . 2
6.1.1 Minimum precision . 3
6.1.2 Limit of detection . 3
6.1.3 Calibration linearity . 3
6.1.4 Characteristic concentration . 3
6.2 Ancillary equipment . 3
7 Sampling . 3
8 Procedure .3
8.1 Test portion . 3
8.2 Blank test . 4
8.3 Determination . 4
8.3.1 Preparation of the test solution . 4
8.3.2 Preparation of the calibration solutions . 4
8.3.3 Adjustment and optimization of atomic absorption spectrometer . 6
8.3.4 Spectrometric measurements . 7
8.4 Plotting the calibration curve . 7
9 Expression of results . 7
10 Precision . 8
11 Test report . 8
Annex A (normative) Procedures for the determination of instrumental criteria .10
Annex B (informative) Additional information on the international interlaboratory
precision test .13
Annex C (informative) Graphical representation of precision data .14
Bibliography .15
iii
ISO 4943:2022(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
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electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
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www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 17, Steel, Subcommittee SC 1, Methods
of determination of chemical composition, in collaboration with the European Committee for
Standardization (CEN) Technical Committee CEN/TC 459/SC 2, Methods of chemical analysis for iron
and steel, in accordance with the Agreement on technical cooperation between ISO and CEN (Vienna
Agreement).
This second edition cancels and replaces the first edition (ISO 49
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