EN ISO 9073-18:2023

Nonwovens - Test methods - Part 18: Determination of tensile strength and elongation at break using the grab tensile test (ISO 9073-18:2023, Corrected version 2024-05)

This document specifies a test method for the determination of the breaking force of nonwovens using a grab method in conditioned or wet state.
This test method is not applicable to materials which have a high percentage of stretch. Comparing test results from tensile testing machines operating on different principles is not applicable.
This document specifies methods using constant rate of specimen extension (CRE) tensile testers. Constant-rate-of-loading (CRL) instruments is covered, for information, in ISO 2062:2009, Annex A, in recognition of the fact that these instruments are still in use and can be used by agreement.

Vliesstoffe - Prüfverfahren - Teil 18: Bestimmung der Höchstzugkraft und der Höchstzugkraftdehnung von Vliesstoffen mit dem Grab-Zugversuch (ISO 9073-18:2023, korrigierte Fassung 2024-05)

Dieses Dokument legt ein Prüfverfahren zur Bestimmung der Höchstzugkraft von Vliesstoffen im vorbehandelten bzw. nassen Zustand mit einem Grab-Zugversuch fest.
Dieses Prüfverfahren ist nicht anwendbar für Materialien mit einer hohen Dehnbarkeit. Ein Vergleich der Prüfergebnisse von Zugprüfmaschinen, die nach unterschiedlichen Prinzipien arbeiten, ist nicht anwendbar.
Dieses Dokument legt Verfahren unter Verwendung von Zugprüfgeräten mit konstanter Verformungsgeschwindigkeit (CRE, en: constant rate of specimen extension) fest. Geräte mit konstanter Lastgeschwindigkeit (CRL, en: constant rate of loading) werden in Anerkennung der Tatsache, dass diese Geräte weiterhin verwendet werden und nach Vereinbarung verwendet werden können, zu Informationszwecken in ISO 2062:2009, Anhang A, behandelt.
SICHERHEITSHINWEIS — Dieses Dokument erhebt nicht den Anspruch, eine vollständige Aufzählung von gegebenenfalls zutreffenden Sicherheitsproblemen zu beinhalten, die mit seiner Anwendung verbunden sind. Es liegt in der Verantwortung des Anwenders dieses Dokuments, geeignete Vorkehrungen für den Arbeits- und Gesundheitsschutz zu treffen und vor der Anwendung festzulegen, welche einschränkenden Vorschriften gelten. Es wird erwartet, dass die Person, die diese Prüfung durchführt, in allen Aspekten dieses Verfahrens umfassend geschult wurde.

Nontissés - Méthodes d’essai - Partie 18: Détermination de la résistance à la traction et de l’allongement à la rupture par l’essai d’arrachement par traction (ISO 9073-18:2023, Version corrigée 2024-05)

Le présent document spécifie une méthode d’essai pour la détermination de la force de rupture des nontissés après conditionnement ou à l’état humide, par une méthode d’arrachement.
Cette méthode d’essai n’est pas applicable aux matériaux ayant un pourcentage élevé d’allongement. La comparaison de résultats d’essais obtenus sur des machines d’essai de traction fonctionnant selon des principes différents n’est pas applicable.
Le présent document spécifie des méthodes utilisant des machines d’essai de traction à vitesse constante d’allongement (CRE) des éprouvettes. À titre d’information, les instruments à vitesse constante de charge (CRL) sont couverts par l’ISO 2062:2009, Annexe A, en reconnaissance du fait que ces instruments sont toujours utilisés et peuvent l’être sur la base d’un accord.

Vlaknovine, netkani materiali - Metode preskušanja - 18. del: Ugotavljanje pretržne sile in raztezka ob pretrgu z nateznim preskusom (grab tensile test) (ISO 9073-18:2023)

Standard ISO 9073-18:2007 določa postopek nateznega preskusa za ugotavljanje pretržne sile trdnosti in raztezka ob pretrgu večine netkanih materialov. Vključuje navodila za preskušanje mokrih vzorcev.
Ta postopek nateznega preskusa se uporablja za večino netkanih materialov, vendar pa se ga ne priporoča za netkane materiale, ki imajo visok odstotek raztezanja.

General Information

• Status: Published
• Publication Date: 28-Nov-2023
• ICS: 59.080.30 - Textile fabrics
• Technical Committee: CEN/TC 248 - Textiles and textile products
• Drafting Committee: CEN/TC 248 - Textiles and textile products
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 29-Nov-2023
• Completion Date: 29-Nov-2023
• Ref Project: SIST EN ISO 9073-18:2024 - Nonwovens - Test methods - Part 18: Determination of tensile strength and elongation at break using the grab tensile test (ISO 9073-18:2023)

Relations

• Replaces: EN ISO 9073-18:2008 - Textiles - Test methods for nonwovens - Part 18: Determination of breaking strength and elongation of nonwoven materials using the grab tensile test (ISO 9073-18:2007)
• Effective Date: 25-Aug-2021

Standards Content (Sample)

SLOVENSKI STANDARD
01-februar-2024
Vlaknovine, netkani materiali - Metode preskušanja - 18. del: Ugotavljanje pretržne
sile in raztezka ob pretrgu z nateznim preskusom (grab tensile test) (ISO 9073-
18:2023)
Nonwovens - Test methods - Part 18: Determination of tensile strength and elongation at
break using the grab tensile test (ISO 9073-18:2023)
Vliesstoffe - Prüfverfahren - Teil 18: Bestimmung der Höchstzugkraft und der
Höchstzugkraftdehnung von Vliesstoffen mit dem Grab-Zugversuch (ISO 9073-18:2023)
Nontissés - Méthodes d’essai - Partie 18: Détermination de la résistance à la traction et
de l’allongement à la rupture par l’essai d’arrachement par traction (ISO 9073-18:2023)
Ta slovenski standard je istoveten z: EN ISO 9073-18:2023
ICS:
59.080.30 Tkanine Textile fabrics
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 9073-18
EUROPEAN STANDARD
NORME EUROPÉENNE
November 2023
EUROPÄISCHE NORM
ICS 59.080.30 Supersedes EN ISO 9073-18:2008
English Version
Textiles - Test methods for nonwovens - Part 16:
Determination of resistance to penetration by water
(hydrostatic pressure) (ISO 9073-18:2023)
Textiles - Méthodes d'essai pour nontissés - Partie 16: Vliesstoffe - Prüfverfahren - Teil 18: Bestimmung der
Détermination de la résistance à la pénétration de l'eau Höchstzugkraft und der Höchstzugkraftdehnung von
(pression hydrostatique) (ISO 9073-18:2023) Vliesstoffen mit dem Grab-Zugversuch (ISO 9073-
18:2023)
This European Standard was approved by CEN on 25 November 2023.

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
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 9073-18:2023 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 9073-18:2023) has been prepared by Technical Committee ISO/TC 38
"Textiles" in collaboration with Technical Committee CEN/TC 248 “Textiles and textile products” the
secretariat of which is held by BSI.
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 May 2024, and conflicting national standards shall be
withdrawn at the latest by May 2024.
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 9073-18:2008.
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 9073-18:2023 has been approved by CEN as EN ISO 9073-18:2023 without any
modification.
INTERNATIONAL ISO
STANDARD 9073-18
Second edition
2023-11
Nonwovens — Test methods —
Part 18:
Determination of tensile strength and
elongation at break using the grab
tensile test
Nontissés — Méthodes d’essai —
Partie 18: Détermination de la résistance à la traction et de
l’allongement à la rupture par l’essai d’arrachement par traction
Reference number
ISO 9073-18:2023(E)
ISO 9073-18:2023(E)
© ISO 2023
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: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii
ISO 9073-18:2023(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 3
5 Reagents and materials . 3
6 Apparatus . 3
7 Sampling . 4
7.1 Lot sampling . 4
7.2 Laboratory sample . 5
7.3 Test specimens. 5
8 Conditioning . 5
9 Preparation of test specimens . 6
9.1 General . 6
9.2 Dimensions . 6
9.3 Marking on the test specimen . 6
9.4 Wet test specimens . 6
10 Preparation, calibration and verification of apparatus . 7
10.1 Tensile testing machine . 7
10.2 Clamping system . 7
10.3 Verification of the total operating system of the apparatus . 7
11 Procedure . 8
11.1 Gauge length . 8
11.2 Rate of extension . 8
11.3 Mounting of test specimens . 8
11.4 Operation . 8
11.4.1 General . 8
11.4.2 Slippage. 8
11.4.3 Jaw breaks . 9
12 Calculation . 9
12.1 Breaking force . 9
12.2 Apparent elongation . 9
13 Expression of results .9
14 Precision and bias . 9
15 Test report . 9
Annex A (informative) Possible causes of low precision when grab strength testing .11
Bibliography .12
iii
ISO 9073-18:2023(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 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 all
such patent rights.
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 Technical Committee ISO/TC 38, Textiles, in collaboration with the
European Committee for Standardization (CEN) Technical Committee CEN/TC 248, Textiles and textile
products, in accordance with the Agreement on technical cooperation between ISO and CEN (Vienna
Agreement).
This second edition cancels and replaces the first edition (ISO 9073-18:2007), which has been
technically revised.
The main changes are as follows:
— the title has been changed from "Determination of breaking strength and elongation of nonwoven
material using the grab tensile test" to "Determination of tensile strength and elongation at break
suing the grab tensile test";
— the Scope has been clarified and made precise;
— new terms have been added to the list of terms in Clause 3;
— new following new Clauses have been added and subsequent clauses have been renumbered:
— Clause 7, Sampling;
— Clause 8, Conditioning;
— Clause 9, Preparation of specimens;
— Clause 10, Preparation, calibration and verification of apparatus;
— Clause 13, Expression of results;
iv
ISO 9073-18:2023(E)
— Clause 14, Precision and bias.
A list of all parts in the ISO 9073 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.
v
INTERNATIONAL STANDARD ISO 9073-18:2023(E)
Nonwovens — Test methods —
Part 18:
Determination of tensile strength and elongation at break
using the grab tensile test
SAFETY WARNING — This document does not claim to address all of the safety concerns, if
any, associated with its use. It is the responsibility of the user of this document to establish
appropriate safety and health practices and determine the applicability of regulatory limitations
prior to use. It is expected that the person performing this test has been fully trained in all
aspects of this procedure.
1 Scope
This document specifies a test method for the determination of the breaking force of nonwovens using
a grab method in conditioned or wet state.
This test method is not applicable to materials which have a high percentage of stretch. Comparing test
results from tensile testing machines operating on different principles is not applicable.
This document specifies methods using constant rate of specimen extension (CRE) tensile testers.
Constant-rate-of-loading (CRL) instruments is covered, for information, in ISO 2062:2009, Annex A, in
recognition of the fact that these instruments are still in use and can be used by agreement.
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 139, Textiles — Standard atmospheres for conditioning and testing
ISO 186, Paper and board — Sampling to determine average quality
ISO 2859-1, Sampling procedures for inspection by attributes — Part 1: Sampling schemes indexed by
acceptance quality limit (AQL) for lot-by-lot inspection
ISO 3696, Water for analytical laboratory use — Specification and test methods
ISO 3951-1, Sampling procedures for inspection by variables — Part 1: Specification for single sampling
plans indexed by acceptance quality limit (AQL) for lot-by-lot inspection for a single quality characteristic
and a single AQL
ISO 7500-1, Metallic materials — Calibration and verification of static uniaxial testing machines — Part 1:
Tension/compression testing machines — Calibration and verification of the force-measuring system
ISO 10012, Measurement management systems — Requirements for measurement processes and measuring
equipment
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO 9073-18:2023(E)
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
3.1
breaking force
maximum force applied to a material carried to rupture
Note 1 to entry: Materials that are brittle usually rupture at the maximum force. Materials that are ductile
usually experience a maximum force before rupturing.
3.2
maximum force
force applied to a material carried to rupture
3.3
constant-rate-of-extension tensile testing machine
CRE machine
tensile-testing machine provided with one clamp which is stationary and another clamp which moves
with constant speed throughout the test, the entire testing system being virtually free from deflection
3.4
constant-rate-of-load tensile testing machine
CRL machine
testing machine in which the rate of increase of the load being applied to the specimen is uniform with
time after the first 3 s
3.5
grab test
tensile test in which only the centre part of the test specimen is gripped in the jaws of the testing
machine
3.6
elongation
deformation in the direction of load caused by a tensile force, generally expressed as a ratio of the
length of the stretched material to the length of the unstretched material
Note 1 to entry: Elongation may be determined by the degree of stretch under a specific load or the point where
the stretched material breaks.
Note 2 to entry: Elongation is expressed as a percentage.
3.7
extension
change in length of a material due to stretchingNote 1 to entry: Extension is expressed in units of length.
Note 1 to entry: See elongation (3.6).
3.8
grab strength testing
measuring of the “effective strength” of a fabric, i.e. the strength of fibres in a specific width together
with the additional strength contributed by adjacent fibres
Note 1 to entry: Typically, grab strength is determined on a 100 mm wide strip of fabric, with the tensile load
applied at the midpoint of the fabric width through 25 mm wide jaw faces that are used to clamp the fabric.
3.9
sample
product or a portion of a product taken from a production lot for testing purposes, identifiable and
traceable back to the origin
ISO 9073-18:2023(E)
3.10
test specimen
specific portion of the identified sample upon which a test is performed
Note 1 to entry: Many specimens may be tested from the same sample, using different locations.
3.11
tensile strength
resistance of a material to breaking under tension
Note 1 to entry: Tensile strength is preferably expressed in Newton.
3.12
gauge length
distance between the two effective clamping points of a testing device
Note 1 to entry
...