EN ISO 17489:2013
(Main)Leather - Chemical tests - Determination of tan content in synthetic tanning agents (ISO 17489:2013)
Leather - Chemical tests - Determination of tan content in synthetic tanning agents (ISO 17489:2013)
ISO 17489:2013 specifies a simple and practical method of determining the adsorbable fraction of synthetic tanning agents using a polymer-based product. It is particularly suitable for measuring the batch-to-batch consistency of synthetic tanning agents.
Leder - Chemische Prüfungen - Bestimmung des Gerbanteils in Gerbstoffen (ISO 17489:2013)
Diese Internationale Norm legt ein einfaches und praktikables Verfahren zur Bestimmung des adsorbierbaren Anteils von synthetischen Gerbstoffen mit einem Produkt auf Polymerbasis fest. Es ist besonders zur Messung der gleichbleibenden Qualität von synthetischen Gerbstoffen geeignet.
Cuir - Essais chimiques - Détermination de la teneur en tanin dans les agents de tannage synthétiques (ISO 17489:2013)
L'ISO 17489:2013 spécifie une méthode simple et pratique permettant de déterminer, à l'aide d'un produit à base polymère, la fraction adsorbable des agents de tannage synthétiques. Elle convient particulièrement au mesurage de l'uniformité, d'un lot à un autre, des agents de tannage synthétiques.
Usnje - Kemični preskusi - Določevanje strojila v sintetičnih sredstvih za strojenje (ISO 17489:2013)
Ta mednarodni standard določa enostavno in praktično metodo za določevanje adsorbljivega deleža sintetičnih sredstev za strojenje z uporabo proizvoda na osnovi polimerov. Primerna je zlasti za merjenje skladnosti med serijami sintetičnih sredstev za strojenje.
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-januar-2014
8VQMH.HPLþQLSUHVNXVL'RORþHYDQMHVWURMLODYVLQWHWLþQLKVUHGVWYLK]DVWURMHQMH
,62
Leather - Chemical tests - Determination of tan content in synthetic tanning agents (ISO
17489:2013)
Leder - Chemische Prüfungen - Bestimmung des Gerbanteils in Gerbstoffen (ISO
17489:2013)
Cuir - Essais chimiques - Détermination de la teneur en tanin dans les agents de
tannage synthétiques (ISO 17489:2013)
Ta slovenski standard je istoveten z: EN ISO 17489:2013
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 17489
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2013
ICS 59.140.30
English Version
Leather - Chemical tests - Determination of tan content in
synthetic tanning agents (ISO 17489:2013)
Cuir - Essais chimiques - Détermination de la teneur en Leder - Chemische Prüfungen - Bestimmung des
tanin dans les agents de tannage synthétiques (ISO Gerbanteils in Gerbstoffen (ISO 17489:2013)
17489:2013)
This European Standard was approved by CEN on 12 October 2013.
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
© 2013 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 17489:2013 E
worldwide for CEN national Members.
Contents Page
Foreword .3
Foreword
This document (EN ISO 17489:2013) has been prepared by 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 May 2014, and conflicting national standards shall be withdrawn at the
latest by May 2014.
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 17489:2013 has been approved by CEN as EN ISO 17489:2013 without any modification.
INTERNATIONAL ISO
STANDARD 17489
IULTCS/IUC 33
First edition
2013-11-01
Leather — Chemical tests —
Determination of tan content in
synthetic tanning agents
Cuir — Essais chimiques — Détermination de la teneur en tanin dans
les agents de tannage synthétiques
Reference numbers
ISO 17489:2013(E)
IULTCS/IUC 33:2013(E)
©
ISO 2013
ISO 17489:2013(E)
IULTCS/IUC 33:2013(E)
© ISO 2013
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
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Published in Switzerland
ii © ISO 2013 – All rights reserved
ISO 17489:2013(E)
IULTCS/IUC 33:2013(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Reagents . 1
6 Apparatus . 1
7 Procedure. 2
7.1 Preparation of the synthetic tanning agent solution for analysis . 2
7.2 Determination of the total residual dry content (duplicate determination) . 2
7.3 Determination of the non-tanning agent content (i.e. non-adsorbable fraction). 3
8 Calculation and expression of results . 3
9 Test report . 3
Annex A (informative) Interlaboratory trial results for the determination of the tan content .4
Annex B (informative) Sources of chemicals . 5
Bibliography
................................................................................................................................................................................................................................ 6
ISO 17489:2013(E)
IULTCS/IUC 33:2013(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 17489 was prepared by the European Committee for Standardization (CEN) Technical Committee
CEN/TC 289, Leather, in collaboration with the Chemical Tests Commission of the International Union
of Leather Technologists and Chemists Societies (IUC Commission, IULTCS), in accordance with the
Agreement on technical cooperation between ISO and CEN (Vienna Agreement).
IULTCS, originally formed in 1897, is a worldwide 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.
iv © ISO 2013 – All rights reserved
ISO 17489:2013(E)
IULTCS/IUC 33:2013(E)
Introduction
The ISO Standard, ISO 14088, is the traditional method for analysing the tanning component in a tanning
agent. It uses chromium (III) tanned hide powder and determines the proportion of tanning agent that
is adsorbed onto the hide powder. The non-adsorbable fraction, consisting largely of inorganic salts,
remains in the tanning solution. By determining the dry content of the initial tanning solution and the
non-adsorbable fraction, one calculates the adsorbable fraction – this is the tanning component in the
tanning agent.
In this manner, the traditional hide powder method is used to determine the tanning strength of tanning
agents. However, for reproducible test results this method requires considerable expertise from the
operator in the preparation and packing of hide powder filter cartridges. In addition, the time for the
filtration can be very long and the method is not suitable when results are needed in a short period of
time, such as during the production quality control when manufacturing synthetic tanning agents.
The co-polymers of vinylimidazole and vinylpyrrolidone are used for removing polyphenolic
compounds and metals from wine. This polymer-based powder offers a simple and practical alternative
to hide powder for the routine testing of synthetic tanning agents, such as in a manufacturing facility.
Interlaboratory trials (given in Table A.1) show the reproducibility and precision of repeat testing is
better for the polymer-based powder.
The two procedures, ISO 14088 and ISO 17489, use different adsorbing substrates; consequently, the
value for the adsorbable fraction will be different and the results obtained can only be compared when
made with the same adsorbing substrate.
ISO 17489:2013(E)
INTERNATIONAL STANDARD
IULTCS/IUC 33:2013(E)
Leather — Chemical tests — Determination of tan content
in synthetic tanning agents
1 Scope
This International Standard specifies a simple and practical method of determining the adsorbable
fraction of synthetic tanning agents using a polymer-based product. It is particularly suitable for
measuring the batch-to-batch consistency of synthetic tanning agents.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
ISO 3696:1987, Water for analytical laboratory use — Specification
...
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