EN ISO 4674-1:2003
(Main)Rubber- or plastics-coated fabrics - Determination of tear resistance - Part 1: Constant rate of tear methods (ISO 4674-1:2003)
Rubber- or plastics-coated fabrics - Determination of tear resistance - Part 1: Constant rate of tear methods (ISO 4674-1:2003)
ISO 4674-1:2003 describes two methods for determining the forces necessary to initiate and propagate tearing of a coated fabric using the constant rate of tear method. The methods described are:
method A: tongue tear;
method B: trouser tear.
Mit Kautschuk oder Kunststoff beschichtete Textilien - Bestimmung der Weiterreißfestigkeit - Teil 1: Verfahren mit konstanter Geschwindigkeit (ISO 4674-1:2003)
Dieser Teil der ISO 4674 legt zwei nach dem Prinzip der konstanten Ge-schwindig-keit arbeitende Verfahren zur Bestimmung der Kräfte fest, die erforderlich sind, um bei beschich-teten Flächengebilden ein Einreißen und Weiterreißen auszulösen. Die beschriebenen Verfahren sind:
¾ Verfahren A - Zungen-Weiterreißversuch;
¾ Verfahren B - Schenkel-Weiterreißversuch.
Supports textiles revêtus de caoutchouc ou de plastique - Détermination de la résistance au déchirement - Partie 1: Méthodes à vitesse constante de déchirement (ISO 4674-1:2003)
L'ISO 4674-1:2003 décrit deux méthodes de détermination des forces nécessaires pour amorcer et propager le déchirement d'un support textile revêtu en utilisant la méthode de la vitesse constante de déchirement. Les méthodes décrites sont la méthode A, de déchirement en trois languettes et la méthode B, de déchirement en deux languettes.
Gumirane ali plastificirane tekstilije - Ugotavljanje utržne trdnosti – 1. del: Metode trajnega razmerja trganja (ISO 4674-1:2003)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-december-2003
Gumirane ali plastificirane tekstilije - Ugotavljanje utržne trdnosti – 1. del: Metode
trajnega razmerja trganja (ISO 4674-1:2003)
Rubber- or plastics-coated fabrics - Determination of tear resistance - Part 1: Constant
rate of tear methods (ISO 4674-1:2003)
Mit Kautschuk oder Kunststoff beschichtete Textilien - Bestimmung der
Weiterreißfestigkeit - Teil 1: Verfahren mit konstanter Geschwindigkeit (ISO 4674-
1:2003)
Supports textiles revetus de caoutchouc ou de plastique - Détermination de la résistance
au déchirement - Partie 1: Méthodes a vitesse constante de déchirement (ISO 4674-
1:2003)
Ta slovenski standard je istoveten z: EN ISO 4674-1:2003
ICS:
59.080.40 3RYUãLQVNRSUHYOHþHQH Coated fabrics
WHNVWLOLMH
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN ISO 4674-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2003
ICS 59.080.40
English version
Rubber- or plastics-coated fabrics - Determination of tear
resistance - Part 1: Constant rate of tear methods (ISO 4674-
1:2003)
Supports textiles revêtus de caoutchouc ou de plastique - Mit Kautschuk oder Kunststoff beschichtete Textilien -
Détermination de la résistance au déchirement - Partie 1: Bestimmung der Weiterreißfestigkeit - Teil 1: Verfahren mit
Méthodes à vitesse constante de déchirement (ISO 4674- konstanter Geschwindigkeit (ISO 4674-1:2003)
1:2003)
This European Standard was approved by CEN on 7 August 2003.
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 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 Management Centre has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United
Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2003 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 4674-1:2003 E
worldwide for CEN national Members.
CORRECTED 2003-10-01
Foreword
This document (EN ISO 4674-1:2003) has been prepared by Technical Committee ISO/TC 45
"Rubber and rubber products" 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 March 2004, and conflicting national
standards shall be withdrawn at the latest by March 2004.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of
the following countries are bound to implement this European Standard: Austria, Belgium, Czech
Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and
the United Kingdom.
Endorsement notice
The text of ISO 4674-1:2003 has been approved by CEN as EN ISO 4674-1:2003 without any
modifications.
NOTE Normative references to International Standards are listed in Annex ZA (normative).
Annex ZA
(normative)
Normative references to international publications
with their relevant European publications
This European Standard incorporates by dated or undated reference, provisions from other
publications. These normative references are cited at the appropriate places in the text and the
publications are listed hereafter. For dated references, subsequent amendments to or revisions of
any of these publications apply to this European Standard only when incorporated in it by
amendment or revision. For undated references the latest edition of the publication referred to
applies (including amendments).
NOTE Where an International Publication has been modified by common modifications, indicated
by (mod.), the relevant EN/HD applies.
Publication Year Title EN Year
ISO 1421 1998 Rubber- or plastics-coated EN ISO 1421 1998
fabrics - Determination of tensile
strength and elongation at break
ISO 2231 1989 Rubber- or plastics-coated EN ISO 2231 1995
fabrics - Standard atmospheres
for conditioning and testing
ISO 2286-1 1998 Rubber- or plastics-coated EN ISO 2286-1 1998
fabrics - Determination of roll
characteristics - Part 1: Methods
for determination of length, width
and net mass
INTERNATIONAL ISO
STANDARD 4674-1
First edition
2003-09-01
Rubber- or plastics-coated fabrics —
Determination of tear resistance —
Part 1:
Constant rate of tear methods
Supports textiles revêtus de caoutchouc ou de plastique —
Détermination de la résistance au déchirement —
Partie 1: Méthodes à vitesse constante de déchirement
Reference number
ISO 4674-1:2003(E)
©
ISO 2003
ISO 4674-1:2003(E)
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©
ii ISO 2003 – All rights reserved
ISO 4674-1:2003(E)
Contents Page
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Apparatus . 2
5 Atmospheres for conditioning and testing . 2
6 Method A — Tongued (double-tear) test piece . 2
7 Method B — Trouser-shaped (single-tear) test piece . 6
8 Precision . 7
9 Test report . 7
Annexes
Annex A (informative) Example of calculation of tear force . 8
A.1 Example of tear trace . 8
A.2 Alternative approach using medium-sized peaks . 9
Annex B (informative) Wide-width trouser-shaped test piece . 10
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ISO 4674-1:2003(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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
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.
ISO 4674-1 was prepared by Technical Committee ISO/TC 45, Rubber and rubber products, Subcommittee
SC 4, Products (other than hoses).
Together with part 2 (see below), this part of ISO 4674 cancels and replaces ISO 4674:1977, which has been
technically revised.
ISO4674 consists of the following parts, under the general title Rubber- or plastics-coated fabrics —
Determination of tear resistance:
— Part 1: Constant rate of tear methods
— Part 2: Ballistic pendulum method
©
iv ISO 2003 – All rights reserved
ISO 4674-1:2003(E)
Introduction
Tearing is amongst the more usual ways of destruction for many thin materials such as paper, coated or
uncoated textiles, plastic films and leather. Knowledge of the resistance of these materials to this type of
behaviour is therefore very important.
In practice, tearing can result from very different circumstances; hence the large number of test methods that
have been developed in order to predict the behaviour of materials in various situations.
The present International Standard deals with initiated tearing, i.e. the propagation of a tear from an initiating
cut. It consists of the following two parts:
— Part 1: Constant rate of tear methods;
— Part 2: Ballistic pendulum method.
The first part describes two methods using a tensile-testing machine at constant rate of elongation. The second
part describes a dynamic method using the kinetic energy of a falling pendulum.
©
ISO 2003 – All rights reserved v
.
vi
INTERNATIONAL STANDARD ISO 4674-1:2003(E)
Rubber- or plastics-coated fabrics — Determination of tear
resistance —
Part 1:
Constant rate of tear methods
WARNING — Persons using this part of ISO 4674 should be familiar with normal laboratory practice.
This part of ISO 4674 does not purport to address all of the safety problems, if any, associated with its
use. It is the responsibility of the user to establish appropriate safety and health practices and to
ensure compliance with any national regulatory conditions.
1Scope
This part of ISO 4674 describes two methods for determining the forces necessary to initiate and propagate
tearing of a coated fabric using the constant rate of tear method. The methods described are:
— method A: tongue tear;
— method B: trouser tear.
2 Normative references
The following referenced documents are indispensable for the application 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 1421:1998, Rubber- or plastics-coated fabrics — Determination of tensile strength and elongation at break
ISO 2231:1989, Rubber- or plastics-coated fabrics — Standard atmospheres for conditioning and testing
ISO 2286-1:1998, Rubber- or plastics-coated fabrics — Determination of roll characteristics — Part 1: Methods
for determination of length, width and net mass
ISO 2602:1980, Statistical interpretation of test results — Estimation of the mean — Confidence interval
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
peak
point on an autographic trace where the gradient, relative to the force values recorded, changes from positive to
negative
NOTE For tear recordings, a peak to be used for calculation is defined by a drop in force of at least 10 % of the last
increasing force value.
©
ISO 2003 – All rights reserved 1
ISO 4674-1:2003(E)
3.2
length of tear
measured length of a tear produced by a tearing force from the initiation of the force until its termination
4 Apparatus
4.1 Constant rate of extension tensile-testing machine, complying with ISO 1421. The width of each jaw
shall be not less than the width of th
...
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