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, izvirajočih iz azo barvil (ISO 17234-1:2024)
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Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prEN ISO 17234-1:2023
01-december-2023
Usnje - Kemijski preskusi za določevanje nekaterih azo barvil na barvanem usnju -
1. del: Določevanje nekaterih aromatskih aminov, izvirajočih iz azo barvil (ISO/DIS
17234-1:2023)
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/DIS
17234-1:2023)
Leder - Chemische Prüfungen zur Bestimmung bestimmter Azofarbstoffe in gefärbten
Ledern - Teil 1: Bestimmung bestimmter aromatischer Amine aus Azofarbstoffen
(ISO/DIS 17234-1:2023)
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/DIS 17234-1:2023)
Ta slovenski standard je istoveten z: prEN ISO 17234-1
ICS:
59.140.30 Usnje in krzno Leather and furs
71.040.40 Kemijska analiza Chemical analysis
oSIST prEN ISO 17234-1:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
oSIST prEN ISO 17234-1:2023
oSIST prEN ISO 17234-1:2023
DRAFT INTERNATIONAL STANDARD
ISO/DIS 17234-1
IULTCS
IULTCS Secretariat: ISO
Voting begins on: Voting terminates on:
2023-09-26 2023-12-19
Leather — Chemical tests for 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
ICS: 59.140.30
This document is circulated as received from the committee secretariat.
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
ISO/CEN PARALLEL PROCESSING
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
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STANDARDS MAY ON OCCASION HAVE TO
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Reference numbers
NATIONAL REGULATIONS.
ISO/DIS 17234-1:2023(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
IULTCS/IUC 20-1:2023(E)
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION. © ISO 2023
oSIST prEN ISO 17234-1:2023
ISO/DIS 17234-1:2023(E)
DRAFT INTERNATIONAL STANDARD
ISO/DIS 17234-1
IULTCS
IULTCS Secretariat: ISO
Voting begins on: Voting terminates on:
Leather — Chemical tests for 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
ICS: 59.140.30
This document is circulated as received from the committee secretariat.
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
© ISO 2023
ISO/CEN PARALLEL PROCESSING
THEREFORE SUBJECT TO CHANGE AND MAY
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
NOT BE REFERRED TO AS AN INTERNATIONAL
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on STANDARD UNTIL PUBLISHED AS SUCH.
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
IN ADDITION TO THEIR EVALUATION AS
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TECHNOLOGICAL, COMMERCIAL AND
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STANDARDS MAY ON OCCASION HAVE TO
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CH-1214 Vernier, Geneva
POTENTIAL TO BECOME STANDARDS TO
Phone: +41 22 749 01 11
WHICH REFERENCE MAY BE MADE IN
Reference numbers
Email: copyright@iso.org
NATIONAL REGULATIONS.
Website: www.iso.org ISO/DIS 17234-1:2023(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
IULTCS/IUC 20-1:2023(E)
Published in Switzerland
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
ii
PROVIDE SUPPORTING DOCUMENTATION. © ISO 2023
oSIST prEN ISO 17234-1:2023
ISO/DIS 17234-1:2023(E)
IULTCS/IUC 20-1:2023(E)
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. 6
10.4 Check of the analytical system . 6
11 Chromatographic analyses . 6
12 Calibration .6
13 Evaluation .7
13.1 Calculation of amine in the sample. 7
13.2 Reliability of the method . 7
14 Test report . 7
Annex A (informative) Chromatographic analyses. 9
Annex B (informative) Reliability of the method .13
Annex C (informative) Assessment guide — Interpretation of analytical results .14
Annex D (informative) Procedure for liquid/liquid extraction without diatomaceous earth .20
Annex E (normative) Colorants - Method for the determination of certain aromatic amines .23
Annex F (normative) Leather and colorants Method for the determination of free aromatic
amines .24
Bibliography .27
iii
oSIST prEN ISO 17234-1:2023
ISO/DIS 17234-1:2023(E)
IULTCS/IUC 20-1:2023(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 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 cooperation between ISO and CEN
(Vienna Agreement). This method is technically similar to the method in IUC 20, which was declared an
official method at the IULTCS Delegates meeting on 31st May 2003 in Cancun, Mexico.
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.
This fourth edition cancels and replaces the third edition (ISO 17234-1:2020), which has been
technically revised.
The changes to the previous edition are as follows:
— two new normative Annexes E and F are added.
A list of all parts in the ISO 17234 series can be found on the ISO website.
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
oSIST prEN ISO 17234-1:2023
ISO/DIS 17234-1:2023(E)
DRAFT INTERNATIONAL STANDARD
IULTCS/IUC 20-1:2023(E)
Leather — Chemical tests for the determination of certain
azo colourants in dyed leathers —
Part 1:
Determination of certain aromatic amines derived from
azo colourants
1 Scope
This document specifies a method for determining the use of certain azo colourants which can release
certain aromatic amines.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 2418, Leather — Chemical, physical and mechanical
...
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