Footwear - Test methods for shanks - Longitudinal stiffness

ISO 18896:2018 specifies a method for assessing the stiffness in the longitudinal direction of steel shanks used for the reinforcement of the waist region of women's shoes and of some men's and children's shoes.

Chaussures — Méthodes d'essai pour cambrions — Rigidité longitudinale

L'ISO 18896:2018 spécifie une méthode de contrôle de la rigidité longitudinale des cambrions en acier utilisés pour renforcer la cambrure des chaussures pour femmes et de certaines chaussures pour hommes et pour enfants.

General Information

Status
Published
Publication Date
14-Mar-2018
Technical Committee
ISO/TC 216 - Footwear
Current Stage
9093 - International Standard confirmed
Start Date
12-Jul-2023
Completion Date
13-Dec-2025

Relations

Effective Date
06-Jun-2022
Effective Date
08-Dec-2012

Overview

ISO 18896:2018 is an international standard specifying a test method for assessing the longitudinal stiffness of steel shanks used in footwear. Shanks are structural components reinforcing the waist region of women's shoes and some men's and children's shoes to provide support and durability. This standard defines a precise procedure to measure the stiffness by applying forces to the shank and measuring its deflection, ensuring a consistent evaluation of shank quality across different manufacturers and products.

Developed by ISO Technical Committee ISO/TC 216 (Footwear), this second edition improves upon the original 2006 version, aligning with modern testing needs and industry practices.

Key Topics

  • Scope and Purpose
    Specifies a method to determine the stiffness in the longitudinal direction of steel shanks used in shoe reinforcement, focusing on reliable and repeatable measurements.

  • Terminology
    Defines the key term longitudinal stiffness as the resistance to bending along the length of the shank, measured by deflection under a specified load.

  • Testing Apparatus
    Requires specialized test machines with:

    • Heel end clamps designed to secure the shank without damage
    • Load application devices that apply downward forces of 2 N, 4 N, 6 N, and 8 N
    • Precise displacement measurement tools (±0.025 mm accuracy)
  • Sampling and Conditioning
    Specimens must be complete shanks, conditioned for 48 hours in a controlled atmosphere per ISO 18454 standards to ensure accuracy and repeatability.

  • Test Procedure
    Includes clamping the shank, applying incremental loads at the forward end, measuring vertical deflections at each load, and calculating flexural rigidity (a measure of stiffness).

  • Calculations
    Uses a formula to compute flexural rigidity (S), incorporating applied load (F), moment length (L), and measured deflection (a) to quantify shank stiffness in kilonewtons square millimeters.

  • Reporting Requirements
    Test reports must reference ISO 18896:2018, include detailed sample descriptions, testing results, any deviations from the standard, and the number of specimens tested.

Applications

ISO 18896:2018 provides critical value for various stakeholders in the footwear industry:

  • Footwear Manufacturers
    Enables consistent quality control of shanks to guarantee product performance and comfort, especially in women’s, men’s, and children’s shoes requiring reinforced waist support.

  • Material Suppliers
    Assists steel shank producers in verifying the mechanical properties of their products, ensuring conformance to international quality standards.

  • Testing Laboratories
    Offers a standardized, reproducible method for assessing shank stiffness, facilitating certification and compliance testing services.

  • Product Development
    Helps footwear designers optimize support structures for durability without compromising flexibility and wearer comfort.

Related Standards

  • ISO 18454: Footwear - Standard atmospheres for conditioning and testing of footwear and components for footwear
    This standard complements ISO 18896 by specifying environmental conditioning protocols critical for test reproducibility.

  • ISO/TC 216 Footwear Standards
    The technical committee responsible for developing global footwear standards, including materials, testing methods, and performance criteria.

  • Additional Footwear Component Testing Standards
    Related ISO standards cover other structural and performance aspects of footwear components, ensuring holistic product quality assurance.


Keywords: ISO 18896:2018, footwear shank testing, longitudinal stiffness, steel shank rigidity, shoe reinforcement, flexural rigidity measurement, footwear quality control, shank deflection method, ISO footwear standards, shoe component testing

Standard

ISO 18896:2018 - Footwear -- Test methods for shanks -- Longitudinal stiffness

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Standard

ISO 18896:2018 - Chaussures -- Méthodes d'essai pour cambrions -- Rigidité longitudinale

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Frequently Asked Questions

ISO 18896:2018 is a standard published by the International Organization for Standardization (ISO). Its full title is "Footwear - Test methods for shanks - Longitudinal stiffness". This standard covers: ISO 18896:2018 specifies a method for assessing the stiffness in the longitudinal direction of steel shanks used for the reinforcement of the waist region of women's shoes and of some men's and children's shoes.

ISO 18896:2018 specifies a method for assessing the stiffness in the longitudinal direction of steel shanks used for the reinforcement of the waist region of women's shoes and of some men's and children's shoes.

ISO 18896:2018 is classified under the following ICS (International Classification for Standards) categories: 61.060 - Footwear. The ICS classification helps identify the subject area and facilitates finding related standards.

ISO 18896:2018 has the following relationships with other standards: It is inter standard links to ISO/TS 17423:2014, ISO 18896:2006. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

ISO 18896:2018 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 18896
Second edition
2018-03
Footwear — Test methods for shanks
— Longitudinal stiffness
Chaussures — Méthodes d'essai pour cambrions — Rigidité
longitudinale
Reference number
©
ISO 2018
© ISO 2018
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 2018 – All rights reserved

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Apparatus and materials. 1
5 Sampling and conditioning . 2
6 Test method . 2
7 Expression of results . 3
8 Test report . 3
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 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 the following
URL: www .iso .org/ iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 216, Footwear.
This second edition cancels and replaces the first edition (ISO 18896:2006), which has been technically
revised.
iv © ISO 2018 – All rights reserved

INTERNATIONAL STANDARD ISO 18896:2018(E)
Footwear — Test methods for shanks — Longitudinal
stiffness
1 Scope
This document specifies a method for assessing the stiffness in the longitudinal direction of steel shanks
used for the reinforcement of the waist region of women’s shoes and of some men’s and children’s shoes.
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 amendmen
...


NORME ISO
INTERNATIONALE 18896
Deuxième édition
2018-03
Chaussures — Méthodes d'essai pour
cambrions — Rigidité longitudinale
Footwear — Test methods for shanks — Longitudinal stiffness
Numéro de référence
©
ISO 2018
DOCUMENT PROTÉGÉ PAR COPYRIGHT
© ISO 2018
Tous droits réservés. Sauf prescription différente ou nécessité dans le contexte de sa mise en oeuvre, 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, Geneva
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 2018 – Tous droits réservés

Sommaire Page
Avant-propos .iv
1 Domaine d’application . 1
2 Références normatives . 1
3 Termes et définitions . 1
4 Appareillage et matériel . 1
5 Échantillonnage et conditionnement . 2
6 Méthode d’essai . 2
7 Expression des résultats. 3
8 Rapport d’essai . 3
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 le lien suivant: www .iso .org/ avant -propos.
Le présent document a été élaboré par le comité technique ISO/TC 216, Chaussure.
Cette deuxième édition annule et remplace la première édition (ISO 18896:2006), qui a fait l’objet d’une
révision technique.
iv © ISO 2018 – Tous droits réservés

NORME INTERNATIONALE ISO 18896:2018(F)
Chaussures — Méthodes d'essai pour cambrions —
Rigidité longitudinale
1 Domaine d’application
Le présent document spécifie une méthode de contrôle de la rigidité longitudinale des cambrions en
acier utilisés pour renforcer la cambrure des chaussures pour femmes et de certaines chaussures pour
hommes et pour enfants.
2 Références normatives
Les documents suivants cités dans le texte constituent, pour tout ou partie de leur contenu, des
exigences du présent document. Pour les références datées, seule l’édition citée s’applique. Pour les
références non datées, la dernière édition du document de référence s’applique (y compris les éventuels
amendements).
ISO 18454, Chaussures — Atmosphères normales de conditionnement et d’essai des chaussures et de leurs
éléments constitutifs
3 Termes et définitions
Pour les besoins du présent document, les termes et défi
...

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