Leather - Physical and mechanical tests - Determination of softness (ISO 17235:2015)

ISO 17235:2015 specifies a non-destructive method for determining the softness of leather. It is applicable to all non-rigid leathers, e.g. shoe upper leather, upholstery leather, leathergoods leather, and apparel leather.

Leder - Physikalische und mechanische Prüfungen - Bestimmung der Weichheit (ISO 17235:2015)

Cuir - Essais physiques et mécaniques - Détermination de la souplesse (ISO 17235:2015)

L'ISO 17235:2015 spécifie une méthode d'essai non destructive pour déterminer la souplesse du cuir. Elle s'applique à tous les cuirs non rigides, par exemple les cuirs à dessus de chaussure, les cuirs d'ameublement, les cuirs d'articles de maroquinerie et les cuirs pour habillement.

Usnje - Fizikalni in mehanski preskusi - Ugotavljanje mehkosti (ISO 17235:2015)

Ta mednarodni standard določa nedestruktivno preskusno metodo za ugotavljanje mehkosti usnja. Uporablja se za vse prožne vrste usnja, npr. usnje, ki se uporablja za zgornji del čevlja, tapetništvo, usnjene izdelke in obleke.

General Information

Status
Published
Publication Date
15-Sep-2015
Withdrawal Date
30-Mar-2016
ICS
59.140.30 - Leather and furs
Technical Committee
CEN/TC 289 - Leather
Drafting Committee
CEN/TC 289/WG 2 - Physical test methods
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Start Date
16-Sep-2015
Due Date
18-Apr-2016
Completion Date
16-Sep-2015
Ref Project
SIST EN ISO 17235:2015 - Leather - Physical and mechanical tests - Determination of softness (ISO 17235:2015)

Relations

Replaces
EN ISO 17235:2011 - Leather - Physical and mechanical tests - Determination of softness (ISO 17235:2011)
Effective Date
23-Sep-2015

Overview

EN ISO 17235:2015 (ISO 17235:2015) specifies a non-destructive method for determining the softness of leather. Adopted by CEN, this international standard applies to all non-rigid leathers - for example shoe upper leather, upholstery leather, leathergoods leather, and apparel leather. The method measures leather distension when a defined cylindrical load pin and mass are lowered onto a clamped leather area, giving a repeatable softness value useful for quality control and product development.

Key Topics

  • Principle: A cylindrical rod of defined mass is lowered at a controlled rate onto leather; the vertical distension is recorded as softness.
  • Apparatus requirements:
    • Circular apertures: nominal diameters 35 mm, 25 mm, 20 mm (±0.1 mm).
    • Cylindrical load pin: diameter 4.9 mm ±0.1 mm, length 11.5 mm ±0.1 mm, attached to a cylindrical load; total mass 530 g ±10 g.
    • Vertical travel limited to 11.5 mm ±0.1 mm and lowering time 1.5 s ±0.5 s.
    • Gauge with 0.1 mm resolution to read distension.
    • Flat metal disc (min. 60 mm) for zeroing the gauge.
  • Forces: Effective static test force combines the load (≈5.20 N) and a linearly decreasing spring force, resulting in a total test force in the range ≈6.13 N to 5.5 N over the measurement travel.
  • Sampling & conditioning: Samples are conditioned per ISO 2419 and sampling locations follow ISO 2418. Measurements can be taken without cutting the hide.
  • Procedure & reporting:
    • Zero the gauge with metal disc, clamp leather over the aperture, release load pin and record steady reading.
    • Test at least three non-overlapping areas; report individual readings and the mean.
    • Test report must cite ISO 17235, apertures used, sample IDs, atmosphere, deviations, and readings.

Applications

  • Quality control in tanneries and leather-processing plants to verify product softness specifications.
  • Footwear and upholstery manufacturers to ensure comfort and handling characteristics meet design requirements.
  • Leathergoods and apparel R&D for material comparison, supplier evaluation, and product development.
  • Third‑party test laboratories providing certification and comparison testing.

Who uses it: leather technologists, quality managers, product developers, test laboratories, and standards compliance teams.

Related Standards

  • ISO 2418 - Leather: sampling location.
  • ISO 2419 - Leather: sample preparation and conditioning.

Keywords: EN ISO 17235:2015, ISO 17235:2015, leather softness test, non-destructive softness measurement, leather physical and mechanical tests, shoe upper leather, upholstery leather.

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Frequently Asked Questions

EN ISO 17235:2015 is a standard published by the European Committee for Standardization (CEN). Its full title is "Leather - Physical and mechanical tests - Determination of softness (ISO 17235:2015)". This standard covers: ISO 17235:2015 specifies a non-destructive method for determining the softness of leather. It is applicable to all non-rigid leathers, e.g. shoe upper leather, upholstery leather, leathergoods leather, and apparel leather.

ISO 17235:2015 specifies a non-destructive method for determining the softness of leather. It is applicable to all non-rigid leathers, e.g. shoe upper leather, upholstery leather, leathergoods leather, and apparel leather.

EN ISO 17235:2015 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.

EN ISO 17235:2015 has the following relationships with other standards: It is inter standard links to EN ISO 17235:2011. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

EN ISO 17235:2015 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)


SLOVENSKI STANDARD
01-december-2015
1DGRPHãþD
SIST EN ISO 17235:2012
Usnje - Fizikalni in mehanski preskusi - Ugotavljanje mehkosti (ISO 17235:2015)
Leather - Physical and mechanical tests - Determination of softness (ISO 17235:2015)
Leder - Physikalische und mechanische Prüfungen - Bestimmung der Weichheit (ISO
17235:2015)
Cuir - Essais physiques et mécaniques - Détermination de la souplesse (ISO
17235:2015)
Ta slovenski standard je istoveten z: EN ISO 17235:2015
ICS:
59.140.30 Usnje in krzno Leather and furs
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 17235
EUROPEAN STANDARD
NORME EUROPÉENNE
September 2015
EUROPÄISCHE NORM
ICS 59.140.30 Supersedes EN ISO 17235:2011
English Version
Leather - Physical and mechanical tests - Determination of
softness (ISO 17235:2015)
Cuir - Essais physiques et mécaniques - Détermination Leder - Physikalische und mechanische Prüfungen -
de la souplesse (ISO 17235:2015) Bestimmung der Weichheit (ISO 17235:2015)
This European Standard was approved by CEN on 8 August 2015.

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
© 2015 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 17235:2015 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
European foreword
This document (EN ISO 17235:2015) has been prepared by Technical Committee CEN/TC 289
“Leather”, the secretariat of which is held by UNI, in collaboration with Technical Committee IULTCS
“International Union of Leather Technologists and Chemists Societies”.
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 March 2016, and conflicting national standards shall
be withdrawn at the latest by March 2016.
This document supersedes EN ISO 17235:2011.
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 17235:2015 has been approved by CEN as EN ISO 17235:2015 without any modification.
INTERNATIONAL ISO
STANDARD 17235
IULTCS/IUP 36
Third edition
2015-09-01
Leather — Physical and mechanical
tests — Determination of softness
Cuir — Essais physiques et mécaniques — Détermination de la
souplesse
Reference numbers
ISO 17235:2015(E)
IULTCS/IUP 36:2015(E)
©
ISO 2015
ISO 17235:2015(E)
IULTCS/IUP 36:2015(E)
© ISO 2015, Published in Switzerland
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
the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2015 – All rights reserved

ISO 17235:2015(E)
IULTCS/IUP 36:2015(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Principle . 1
4 Apparatus . 1
5 Sampling and sample preparation . 2
6 Procedure. 2
7 Test report . 3
Annex A (informative) Source of apparatus . 4
ISO 17235:2015(E)
IULTCS/IUP 36:2015(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 coll
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