EN ISO 18218-2:2015

SLOVENSKI STANDARD
01-september-2015
8VQMH'RORþHYDQMHHWRNVLODWQLKDONLOIHQRORYGHO3RVUHGQDPHWRGD,62

Leather - Determination of ethoxylated alkylphenols - Part 2: Indirect method (ISO 18218
-2:2015)
Leder - Chemische Bestimmung von ethoxylierten Alkylphenolen - Teil 2: Indirektes
Verfahren (ISO 18218-2:2015)
Cuir - Détermination chimique des alkylphénols éthoxylés - Partie 2: Méthode indirecte
(ISO 18218-2:2015)
Ta slovenski standard je istoveten z: EN ISO 18218-2:2015
ICS:
59.140.30 Usnje in krzno Leather and furs
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 18218-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2015
ICS 59.140.30
English Version
Leather - Determination of ethoxylated alkylphenols - Part 2:
Indirect method (ISO 18218-2:2015)
Cuir - Détermination chimique des alkylphénols éthoxylés - Leder - Bestimmung von ethoxylierten Alkylphenolen - Teil
Partie 2: Méthode indirecte (ISO 18218-2:2015) 2: Indirektes Verfahren (ISO 18218-2:2015)
This European Standard was approved by CEN on 28 February 2015.

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, 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: Avenue Marnix 17, B-1000 Brussels
© 2015 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 18218-2:2015 E
worldwide for CEN national Members.

Contents Page
European foreword .3

European foreword
This document (EN ISO 18218-2:2015) has been prepared by Technical Committee CEN/TC 289 “Leather”,
the secretariat of which is held by UNI, in collaboration with Technical Committee IULTCS “International Union
of Leather Technologists and Chemists Societies”.
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 2015, and conflicting national standards shall be withdrawn
at the latest by December 2015.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece,
Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
Endorsement notice
The text of ISO 18218-2:2015 has been approved by CEN as EN ISO 18218-2:2015 without any modification.

INTERNATIONAL ISO
STANDARD 18218-2
IULTCS/IUC 28-2
First edition
2015-06-15
Leather — Determination of
ethoxylated alkylphenols —
Part 2:
Indirect method
Cuir — Détermination chimique des alkylphénols éthoxylés —
Partie 2: Méthode indirecte
Reference numbers
ISO 18218-2:2015(E)
IULTCS/IUC 28-2:2015(E)
©
ISO 2015
ISO 18218-2:2015(E)
IULTCS/IUC 28-2:2015(E)
© ISO 2015, Published in Switzerland
All rights reserved. Unless otherwise specified, 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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copyright@iso.org
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ii © ISO 2015 – All rights reserved

ISO 18218-2:2015(E)
IULTCS/IUC 28-2:2015(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Principle . 1
4 Apparatus and materials. 2
5 Chemicals . 2
6 Sampling and sample preparation . 3
6.1 Preparation of leather samples. 3
6.1.1 Sampling and preparation of samples . 3
6.1.2 Sample extraction . 3
6.2 Preparation of leather process auxiliary samples . 3
6.3 Blank determination . 4
6.4 Determination of OP and NP . 4
6.5 Determination of OPEO and NPEO . 4
6.6 Chromatographic analysis . 5
6.7 Evaluation . 5
7 Calibration . 5
7.1 Calibration for OP and NP . 5
7.2 Calibration for OPEO and NPEO . 5
8 Calculation . 6
8.1 Calculation of OP and NP . 6
8.2 Calculation of OPEO and NPEO . 6
9 Test report . 7
Annex A (informative) Preparation of aluminium triiodide . 8
Annex B (informative) Example of HPLC chromatograms . 9
Annex C (informative) Example of GC-MS chromatograms .11
Bibliography .13
ISO 18218-2:2015(E)
IULTCS/IUC 28-2:2015(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 on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical Barriers
to Trade (TBT) see the following URL: Foreword - Supplementary information
ISO 18218-2 was prepared by the Chemical Test 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
which is held by UNI, in accordance with the agreement on technical co-operation between ISO and CEN
(Vienna Agreement).
IULTCS, originally formed in 1897, is a world-wide organization of professional leather societies to
further the advancement of leather science and technology. IULTCS has three Commissions, which are
responsible for establishing international methods for the sampling and testing of leather. ISO recognizes
IULTCS as an international standardizing body for the preparation of test methods for leather.
ISO 18218 consists of the following parts, under the general title Leather — Determination of ethoxylated
alkylphenols:
— Part 1: Direct method
— Part 2: Indirect method
iv © ISO 2015 – All rights reserved

ISO 18218-2:2015(E)
IULTCS/IUC 28-2:2015(E)
Introduction
Nonylphenol ethoxylate belongs to the non-ionic surfactants. The biodegradation of nonylphenol
ethoxylate releases the persistent pollutant branched nonylphenol. Nonylphenol is a hormonal acting
substance that is toxic for waterborne organisms and many othe
...