ISO 23910:2019
(Main)Leather - Physical and mechanical tests - Measurement of stitch tear resistance
Leather - Physical and mechanical tests - Measurement of stitch tear resistance
This document specifies a method for determining the stitch tear resistance of leather. It can be used on all leathers but is particularly suitable for leathers over 1,2 mm in thickness.
Cuir — Essais physiques et mécaniques — Mesurage de la résistance à l'arrachement au point de couture
Le présent document spécifie une méthode de détermination de la résistance à l'arrachement au point de couture du cuir. Cette méthode est utilisable sur tous les cuirs, mais est particulièrement bien adaptée aux cuirs de plus de 1,2 mm d'épaisseur.
General Information
- Status
- Published
- Publication Date
- 06-Jun-2019
- Technical Committee
- IULTCS - International Union of Leather Technologists and Chemists Societies
- Current Stage
- 9092 - International Standard to be revised
- Start Date
- 01-Oct-2025
- Completion Date
- 30-Oct-2025
Relations
- Revises
ISO 23910:2017 - Leather - Physical and mechanical tests - Measurement of stitch tear resistance - Effective Date
- 06-May-2017
Overview
ISO 23910:2019 specifies a standardized method for measuring the stitch tear resistance of leather materials. This standard is applicable to all leather types, with a particular focus on leathers thicker than 1.2 mm. Stitch tear resistance testing is crucial for assessing leather durability, especially in applications where sewn leather components are subjected to stress.
Developed by ISO in collaboration with the International Union of Leather Technologists and Chemists Societies (IULTCS), ISO 23910:2019 provides a reliable, reproducible test method widely recognized in the leather industry to ensure quality and performance consistency.
Key Topics
- Scope and Applicability: The method is designed for physical and mechanical testing of leather stitch tear resistance, suitable for varied leather thicknesses but optimized for thickness over 1.2 mm.
- Test Principle: The test involves pulling a leather specimen against a specially shaped mandrel inserted through a slit in the leather, measuring the force required to cause a stitch tear.
- Apparatus Requirements: Includes a tensile testing machine with controlled jaw speed, a metal test piece holder, a specific mandrel, thickness gauges, and a press knife to prepare slits in the leather.
- Sample Preparation: Leather samples are conditioned and cut using a press knife into standardized test pieces, with orientation both parallel and perpendicular to the backbone to ensure consistent results.
- Testing Procedure: The force applied to tear the stitched leather is recorded in newtons, with tests repeated on multiple samples to determine mean tear resistance.
- Reporting Requirements: Results must include leather thickness, mean tear load values for each orientation, conditioning atmosphere, any deviations, and comprehensive sample identification details.
Applications
ISO 23910:2019 is essential for leather manufacturers, quality control laboratories, and product designers focused on:
- Durability Assessment: Verifying the resistance of leather to stitching-related tearing stresses helps predict product lifespan and performance.
- Quality Control: Ensuring consistency across leather batches and suppliers by testing physical properties relevant to sewing and stitching processes.
- Product Development: Informing material selection and design improvements for sewn leather components in footwear, upholstery, automotive interiors, leather apparel, and accessories.
- Compliance and Certification: Meeting industry and regulatory requirements by using an internationally recognized testing procedure to validate leather product standards.
- Research and Innovation: Providing a benchmark method to evaluate new leather treatments, finishes, or alternative materials for enhanced stitch tear resistance.
Related Standards
ISO 23910:2019 references and complements several other important ISO standards for comprehensive leather testing:
- ISO 2418: Sampling locations for leather testing to ensure representative specimens.
- ISO 2419:2012: Guidelines for sample preparation and conditioning.
- ISO 2589: Procedures for determining leather thickness, critical for interpreting tear resistance.
- ISO 7500-1:2018: Calibration requirements for tensile testing machines used during testing.
- EN 15987: Key terminology definitions related to leather trade and testing.
By adhering to ISO 23910:2019 alongside these related standards, leather industry professionals can maintain precision, reliability, and international compliance in testing and reporting stitch tear resistance.
ISO 23910:2019 stands as a definitive resource for measuring stitch tear resistance in leather, promoting product quality, durability, and innovation in the global leather sector.
ISO 23910:2019 - Leather — Physical and mechanical tests — Measurement of stitch tear resistance Released:6/7/2019
ISO 23910:2019 - Cuir — Essais physiques et mécaniques — Mesurage de la résistance à l'arrachement au point de couture Released:6/7/2019
Frequently Asked Questions
ISO 23910:2019 is a standard published by the International Organization for Standardization (ISO). Its full title is "Leather - Physical and mechanical tests - Measurement of stitch tear resistance". This standard covers: This document specifies a method for determining the stitch tear resistance of leather. It can be used on all leathers but is particularly suitable for leathers over 1,2 mm in thickness.
This document specifies a method for determining the stitch tear resistance of leather. It can be used on all leathers but is particularly suitable for leathers over 1,2 mm in thickness.
ISO 23910:2019 is classified under the following ICS (International Classification for Standards) categories: 59.140.30 - Leather and furs. The ICS classification helps identify the subject area and facilitates finding related standards.
ISO 23910:2019 has the following relationships with other standards: It is inter standard links to ISO 23910:2017. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
ISO 23910:2019 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
INTERNATIONAL ISO
STANDARD 23910
IULTCS/IUP 44
Third edition
2019-06
Leather — Physical and mechanical
tests — Measurement of stitch tear
resistance
Cuir — Essais physiques et mécaniques — Mesurage de la résistance à
l'arrachement au point de couture
Reference numbers
IULTCS/IUP 44:2019(E)
©
ISO 2019
IULTCS/IUP 44:2019(E)
© ISO 2019
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
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2019 – All rights reserved
IULTCS/IUP 44:2019(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Apparatus . 1
6 Sampling and sample preparation . 3
7 Procedure. 3
8 Test report . 4
IULTCS/IUP 44:2019(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 Physical Test Commission of the International Union of Leather
Technologists and Chemists Societies (IUP 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).
It is based on IUP 44, originally published in J. Soc. Leather Trades Chemists, 84, p. 409: 2000, and
declared an official method of the IULTCS in 2001.
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 third edition cancels and replaces the second edition (ISO 23910:2017), which has been technically
revised with the following changes:
— the wording of 6.1 and 6.2 has been modified to remove possible misunderstanding regarding the
conditioning of samples.
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
...
NORME ISO
INTERNATIONALE 23910
IULTCS/IUP 44
Troisième édition
2019-06
Cuir — Essais physiques et mécaniques
— Mesurage de la résistance à
l'arrachement au point de couture
Leather — Physical and mechanical tests — Measurement of stitch
tear resistance
Numéros de référence
IULTCS/IUP 44:2019(F)
©
ISO 2019
IULTCS/IUP 44:2019(F)
DOCUMENT PROTÉGÉ PAR COPYRIGHT
© ISO 2019
Tous droits réservés. Sauf prescription différente ou nécessité dans le contexte de sa mise en œuvre, aucune partie de cette
publication ne peut être reproduite ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique,
y compris la photocopie, ou la diffusion sur l’internet ou sur un intranet, sans autorisation écrite préalable. Une autorisation peut
être demandée à l’ISO à l’adresse ci-après ou au comité membre de l’ISO dans le pays du demandeur.
ISO copyright office
Case postale 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Genève
Tél.: +41 22 749 01 11
Fax: +41 22 749 09 47
E-mail: copyright@iso.org
Web: www.iso.org
Publié en Suisse
ii © ISO 2019 – Tous droits réservés
IULTCS/IUP 44:2019(F)
Sommaire Page
Avant-propos .iv
1 Domaine d'application . 1
2 Références normatives . 1
3 Termes et définitions . 1
4 Principe . 1
5 Appareillage . 1
6 Échantillonnage et préparation des échantillons . 3
7 Mode opératoire. 4
8 Rapport d'essai . 4
IULTCS/IUP 44:2019(F)
Avant-propos
L'ISO (Organisation internationale de normalisation) est une fédération mondiale d'organismes
nationaux de normalisation (comités membres de l'ISO). L'élaboration des Normes internationales est
en général confiée aux comités techniques de l'ISO. Chaque comité membre intéressé par une étude
a le droit de faire partie du comité technique créé à cet effet. Les organisations internationales,
gouvernementales et non gouvernementales, en liaison avec l'ISO participent également aux travaux.
L'ISO collabore étroitement avec la Commission électrotechnique internationale (IEC) en ce qui
concerne la normalisation électrotechnique.
Les procédures utilisées pour élaborer le présent document et celles destinées à sa mise à jour sont
décrites dans les Directives ISO/IEC, Partie 1. Il convient, en particulier, de prendre note des différents
critères d'approbation requis pour les différents types de documents ISO. Le présent document a été
rédigé conformément aux règles de rédaction données dans les Directives ISO/IEC, Partie 2 (voir www
.iso .org/directives).
L'attention est attirée sur le fait que certains des éléments du présent document peuvent faire l'objet de
droits de propriété intellectuelle ou de droits analogues. L'ISO ne saurait être tenue pour responsable
de ne pas avoir identifié de tels droits de propriété et averti de leur existence. Les détails concernant
les références aux droits de propriété intellectuelle ou autres droits analogues identifiés lors de
l'élaboration du document sont indiqués dans l'Introduction et/ou dans la liste des déclarations de
brevets reçues par l'ISO (voir www .iso .org/brevets).
Les appellations commerciales éventuellement mentionnées dans le présent document sont données
pour information, par souci de commodité, à l’intention des utilisateurs et ne sauraient constituer un
engagement.
Pour une explication de la nature volontaire des normes, la signification des termes et expressions
spécifiques de l'ISO liés à l'évaluation de la conformité, ou pour toute information au sujet de l'adhésion
de l'ISO aux principes de l’Organisation mondiale du commerce (OMC) concernant les obstacles
techniques au commerce (OTC), voir www .iso .org/avant -propos.
Le présent document a été élaboré par la Commission Essais physiques de l’Union internationale des
sociétés de techniciens et chimistes du cuir (Commission IUP, IULTCS) en collaboration avec le Comité
technique du Comité européen de normalisation (CEN) CEN/TC 289, Cuir, dont le secrétariat est tenu
par l’UNI, conformément à l’Accord de coopération technique entre l’ISO et le CEN (l'Accord de Vienne).
Il est basé sur le document IUP 44, qui a été publié dans le J. Soc. Leather Trades Chemists, 84, p. 409:
2000 et déclaré méthode officielle de l’IULTCS en 2001.
L'IULTCS est une organisation mondiale de sociétés professionnelles des industries du cuir fondée en
1897 ayant pour mission de favoriser l'avancement des sciences et technologies du cuir. L’IULTCS a trois
commissions, qui sont responsables de l’établissement de méthodes internationales d’échantillonnage
et d’essai des cuirs. L’ISO reconnaît l’IULTCS en tant qu’organisme international à activités normatives
pour l’élaboration de méthodes d’essai relatives au cuir.
Cette troisième édition annule et remplace la deuxième édition (ISO 23910:2017), qui a fait l’objet d’une
révision technique en vue d'apporter les modifications suivantes:
— la formulation des paragraphes 6.1 et 6.2 a été modifiée pour lever une ambiguïté éventuelle
touchant le conditionnement des échantillons.
Il convient que l’utilisateur adresse tout retour d’information ou toute question concernant le présent
document à l’organisme national de normalisation de son pays. Une liste exhaustive desdits organismes
se trouve à l’adresse www .iso .org/fr/members .html.
iv © ISO 2019 – Tous droits réservés
NORME INTERNATIONALE
IULTC
...
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