EN ISO 5398-3:2018

SLOVENSKI STANDARD
01-oktober-2018
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SIST EN ISO 5398-3:2009
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Leather - Chemical determination of chromic oxide content - Part 3: Quantification by
atomic absorption spectrometry (ISO 5398-3:2018)
Leder - Chemische Bestimmung des Chromoxidgehalts - Teil 3: Bestimmung durch
Atomabsorptionsspektrometrie (ISO 5398-3:2018)
Cuir - Dosage chimique de l'oxyde de chrome - Partie 3: Quantification par spectrométrie
d'absorption atomique (ISO 5398-3:2018)
Ta slovenski standard je istoveten z: EN ISO 5398-3:2018
ICS:
59.140.30 Usnje in krzno Leather and furs
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 5398-3
EUROPEAN STANDARD
NORME EUROPÉENNE
July 2018
EUROPÄISCHE NORM
ICS 59.140.30 Supersedes EN ISO 5398-3:2007
English Version
Leather - Chemical determination of chromic oxide content
- Part 3: Quantification by atomic absorption spectrometry
(ISO 5398-3:2018)
Cuir - Dosage chimique de l'oxyde de chrome - Partie 3: Leder - Chemische Bestimmung des Chromoxidgehalts
Quantification par spectrométrie d'absorption - Teil 3: Bestimmung durch
atomique (ISO 5398-3:2018) Atomabsorptionsspektrometrie (ISO 5398-3:2018)
This European Standard was approved by CEN on 8 June 2018.

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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, 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
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 5398-3:2018 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 5398-3:2018) has been prepared by Technical Committee IULTCS
"International Union of Leather Technologists and Chemists Societies" in collaboration with Technical
Committee CEN/TC 289 “Leather” the secretariat of which is held by UNI.
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 January 2019, and conflicting national standards shall
be withdrawn at the latest by January 2019.
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 ISO 5398-3:2007.
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, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 5398-3:2018 has been approved by CEN as EN ISO 5398-3:2018 without any
modification.
INTERNATIONAL ISO
STANDARD 5398-3
IULTCS/IUC 8-3
Second edition
2018-06
Leather — Chemical determination of
chromic oxide content —
Part 3:
Quantification by atomic absorption
spectrometry
Cuir — Dosage chimique de l'oxyde de chrome —
Partie 3: Quantification par spectrométrie d'absorption atomique
Reference numbers
ISO 5398-3:2018(E)
IULTCS/IUC 8-3:2018(E)
©
ISO 2018
ISO 5398-3:2018(E)
IULTCS/IUC 8-3:2018(E)
© ISO 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.
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Phone: +41 22 749 01 11
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Email: copyright@iso.org
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Published in Switzerland
ii © ISO 2018 – All rights reserved

ISO 5398-3:2018(E)
IULTCS/IUC 8-3:2018(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Sampling and sample preparation . 2
6 Reagents . 2
6.1 Reagents for wet oxidation method . 2
6.2 Reagents for atomic absorption spectrometry . 2
7 Apparatus . 2
8 Methods . 3
8.1 Preparation of analytical solution . 3
8.1.1 Wet oxidation method . 3
8.1.2 Microwave digestion method . 3
8.2 Measurement of the aqueous solution . 3
8.2.1 General. 3
8.2.2 Preparation of calibration graph . 3
8.2.3 Analysis of the test solution . 3
9 Calculation and expression of results . 4
10 Test report . 4
Annex A (informative) Determination of water and other volatile matter . 5
Annex B (informative) Suitable atomic absorption spectrometry (AAS) equipment .6
ISO 5398-3:2018(E)
IULTCS/IUC 8-3:2018(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
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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 on 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 the following
URL: www .iso .org/iso/foreword .html
This document was prepared by the Chemical Tests Commission of the International Union of Leather
Technologists and Chemists Societies (IUC Commission, IULTCS) in collaboration with the European
Committee for Standardization (CEN) Technical Committee CEN/TC 289, Leather, the secretariat of
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