EN ISO 17234-1:2024
(Main)Leather - Chemical tests for the determination of certain azo colourants in dyed leathers - Part 1: Determination of certain aromatic amines derived from azo colourants (ISO 17234-1:2024)
Leather - Chemical tests for the determination of certain azo colourants in dyed leathers - Part 1: Determination of certain aromatic amines derived from azo colourants (ISO 17234-1:2024)
This document specifies a method to determine certain aromatic amines derived from azo colourants.
Leder - Chemische Prüfungen zur Bestimmung bestimmter Azofarbstoffe in gefärbten Ledern - Teil 1: Bestimmung bestimmter aromatischer Amine aus Azofarbstoffen (ISO 17234-1:2024)
Dieses Dokument legt ein Verfahren zur Bestimmung bestimmter aromatischer Amine aus Azofarbstoffen fest.
Cuir - Essais chimiques pour le dosage de certains colorants azoïques dans les cuirs teints - Partie 1: Dosage de certaines amines aromatiques dérivées des colorants azoïques (ISO 17234-1:2024)
Le présent document spécifie une méthode permettant de doser certaines amines aromatiques dérivées de colorants azoïques.
Usnje - Kemijski preskusi za določevanje nekaterih azo barvil na barvanem usnju - 1. del: Določevanje nekaterih aromatskih aminov, pridobljenih iz azo barvil (ISO 17234-1:2024)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-februar-2025
Usnje - Kemijski preskusi za določevanje nekaterih azo barvil na barvanem usnju -
1. del: Določevanje nekaterih aromatskih aminov, pridobljenih iz azo barvil (ISO
17234-1:2024)
Leather - Chemical tests for the determination of certain azo colourants in dyed leathers
- Part 1: Determination of certain aromatic amines derived from azo colourants (ISO
17234-1:2024)
Leder - Chemische Prüfungen zur Bestimmung bestimmter Azofarbstoffe in gefärbten
Ledern - Teil 1: Bestimmung bestimmter aromatischer Amine aus Azofarbstoffen (ISO
17234-1:2024)
Cuir - Essais chimiques pour le dosage de certains colorants azoïques dans les cuirs
teints - Partie 1: Dosage de certaines amines aromatiques dérivées des colorants
azoïques (ISO 17234-1:2024)
Ta slovenski standard je istoveten z: EN ISO 17234-1:2024
ICS:
59.140.30 Usnje in krzno Leather and furs
71.040.40 Kemijska analiza Chemical analysis
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 17234-1
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2024
EUROPÄISCHE NORM
ICS 59.140.30 Supersedes EN ISO 17234-1:2020
English Version
Leather - Chemical tests for the determination of certain
azo colourants in dyed leathers - Part 1: Determination of
certain aromatic amines derived from azo colourants (ISO
17234-1:2024)
Cuir - Essais chimiques pour le dosage de certains Leder - Chemische Prüfungen zur Bestimmung
colorants azoïques dans les cuirs teints - Partie 1: bestimmter Azofarbstoffe in gefärbten Ledern - Teil 1:
Dosage de certaines amines aromatiques dérivées des Bestimmung bestimmter aromatischer Amine aus
colorants azoïques (ISO 17234-1:2024) Azofarbstoffen (ISO 17234-1:2024)
This European Standard was approved by CEN on 9 December 2024.
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
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 17234-1:2024 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
This document (EN ISO 17234-1:2024) has been prepared by Technical Committee ISO/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 June 2025, and conflicting national standards shall be
withdrawn at the latest by June 2025.
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 17234-1:2020.
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 17234-1:2024 has been approved by CEN as EN ISO 17234-1:2024 without any
modification.
International
Standard
ISO
17234-1
IULTCS
IUC 20-1
Fourth edition
Leather — Chemical tests for
2024-12
the determination of certain azo
colourants in dyed leathers —
Part 1:
Determination of certain aromatic
amines derived from azo colourants
Cuir — Essais chimiques pour le dosage de certains colorants
azoïques dans les cuirs teints —
Partie 1: Dosage de certaines amines aromatiques dérivées des
colorants azoïques
Reference numbers
ISO 17234-1:2024(en)
IULTCS/IUC 20-1:2024(en) © ISO 2024
ISO 17234-1:2024(en)
IULTCS/IUC 20-1:2024(en)
© ISO 2024
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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CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
ISO 17234-1:2024(en)
IULTCS/IUC 20-1:2024(en)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 General . 1
5 Principle . 3
6 Safety precautions. 3
7 Apparatus . 3
8 Reagents . 4
9 Sampling and preparation of samples . 5
10 Procedure . 5
10.1 Degreasing.5
10.2 Reductive cleavage .5
10.3 Liquid-liquid extraction.5
10.4 Check of the analytical system .6
11 Chromatographic analyses . 6
12 Calibration . 6
13 Evaluation . 6
13.1 Calculation of amine in the sample.6
13.2 Reliability of the method .7
14 Test report . 7
Annex A (informative) Chromatographic analyses. 8
Annex B (informative) Reliability of the method .11
Annex C (informative) Assessment guide — Interpretation of analytical results .12
Annex D (informative) Procedure for liquid/liquid extraction without diatomaceous earth .18
Annex E (normative) Colourants — Method for the determination of certain aromatic amines .21
Annex F (normative) Leather and colourants — Method for the determination of free aromatic
amines .22
Bibliography .25
iii
ISO 17234-1:2024(en)
IULTCS/IUC 20-1:2024(en)
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
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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 document 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).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a)
patent(s) which may be required to implement this document. However, implementers are cautioned that
this may not represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents. ISO shall not be held responsible for identifying any or a
...
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