EN ISO 21424:2020

SLOVENSKI STANDARD
01-julij-2020
Mleko, mlečni proizvodi, hrana za dojenčke in prehranska dopolnila za odrasle -
Določevanje mineralov in elementov v sledovih - Masna spektrometrija z
induktivno sklopljeno plazmo (ICP-MS) (ISO 21424:2018)
Milk, milk products, infant formula and adult nutritionals - Determination of minerals and
trace elements - Inductively coupled plasma mass spectrometry (ICP-MS) method (ISO
21424:2018)
Milch, Milcherzeugnisse, Säuglingsnahrung und Nahrungsergänzungsmittel für
Erwachsene - Bestimmung von Mineralien und Spurenelementen - Verfahren mit
induktiv gekoppelter Plasma-Massenspektrometrie (ICP-MS) (ISO 21424:2018)
Lait, produits laitiers, formules infantiles et produits nutritionnels pour adultes -
Détermination de la teneur en minéraux et en oligo-éléments - Méthode par
spectrométrie de masse avec plasma à couplage inductif (ICP-SM) (ISO 21424:2018)
Ta slovenski standard je istoveten z: EN ISO 21424:2020
ICS:
67.050 Splošne preskusne in General methods of tests and
analizne metode za živilske analysis for food products
proizvode
67.100.10 Mleko in predelani mlečni Milk and processed milk
proizvodi products
67.230 Predpakirana in pripravljena Prepackaged and prepared
hrana foods
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 21424
EUROPEAN STANDARD
NORME EUROPÉENNE
June 2020
EUROPÄISCHE NORM
ICS 67.100.10
English Version
Milk, milk products, infant formula and adult nutritionals -
Determination of minerals and trace elements -
Inductively coupled plasma mass spectrometry (ICP-MS)
method (ISO 21424:2018)
Lait, produits laitiers, formules infantiles et produits Milch, Milcherzeugnisse, Säuglingsnahrung und
nutritionnels pour adultes - Détermination de la teneur Nahrungsergänzungsmittel für Erwachsene -
en minéraux et en oligo-éléments - Méthode par Bestimmung von Mineralien und Spurenelementen -
spectrométrie de masse avec plasma à couplage Verfahren mit induktiv gekoppelter Plasma-
inductif (ICP-SM) (ISO 21424:2018) Massenspektrometrie (ICP-MS) (ISO 21424:2018)
This European Standard was approved by CEN on 10 May 2020.

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, Turkey 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
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 21424:2020 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
The text of ISO 21424:2018 has been prepared by Technical Committee ISO/TC 34 "Food products” of
the International Organization for Standardization (ISO) and has been taken over as EN ISO 21424:2020
by Technical Committee CEN/TC 302 “Milk and milk products - Methods of sampling and analysis” the
secretariat of which is held by NEN.
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 December 2020, and conflicting national standards
shall be withdrawn at the latest by December 2020.
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.
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, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 21424:2018 has been approved by CEN as EN ISO 21424:2020 without any modification.

INTERNATIONAL ISO
STANDARD 21424
IDF 243
First edition
2018-11
Milk, milk products, infant formula and
adult nutritionals — Determination
of minerals and trace elements —
Inductively coupled plasma mass
spectrometry (ICP-MS) method
Lait, produits laitiers, formules infantiles et produits nutritionnels
pour adultes — Détermination de la teneur en minéraux et en oligo-
éléments — Méthode par spectrométrie de masse avec plasma à
couplage inductif (ICP-SM)
Reference numbers
ISO 21424:2018(E)
IDF 243:2018(E)
©
ISO and IDF 2018
ISO 21424:2018(E)
IDF 243:2018(E)
© ISO and IDF 2018
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 International Dairy Federation
CP 401 • Ch. de Blandonnet 8 Silver Building • Bd Auguste Reyers 70/B
CH-1214 Vernier, Geneva B-1030 Brussels
Phone: +41 22 749 01 11 Phone: +32 2 325 67 40
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Email: copyright@iso.org Email: info@fil-idf.org
Website: www.iso.org Website: www.fil-idf.org
Published in Switzerland
ii © ISO and IDF 2018 – All rights reserved

ISO 21424:2018(E)
IDF 243:2018(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Reagents . 2
6 Preparation of standards and solutions . 3
6.1 Surfactant solution (optional, approximately 5 %) . 3
6.2 Nitric acid rinse solution for autosampler rinse port, 2 % . 3
6.3 P/A factor tuning working solution . 3
6.4 Calibration blank (Cal Blk) and preparation blank (PB) solution . 3
6.5 Calibration standard solution set. 4
7 Apparatus . 4
8 Preparation of test sample . 5
9 Determination . 6
10 Calculation . 7
11 Precision data . 8
11.1 General . 8
11.2 Repeatability . 8
11.3 Reproducibility . 8
12 Test report . 8
Annex A (informative) Precision data . 9
Bibliography .31
ISO 21424:2018(E)
IDF 243:2018(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
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
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).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see www .iso
.org/iso/foreword .html.
This document was prepared by Technical Committee ISO/TC 34, Food products, Subcommittee SC 5,
Milk and milk products and the International Dairy Federation (IDF), in collaboration with AOAC
INTERNATIONAL.
It is being published jointly by ISO and IDF and separately by AOAC INTERNATIONAL. The method
described in this document is equivalent to the AOAC Official Method 2015.06: Minerals and Trace
Elements in Infant Formula.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/members .html.
iv © ISO and IDF 2018 – All rights reserved
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