EN ISO 2062:2009

Textiles - Yarns from packages - Determination of single-end breaking force and elongation at break using constant rate of extension (CRE) tester (ISO 2062:2009)

ISO 2062:2009 specifies methods for the determination of the breaking force and elongation at break of textile yarns taken from packages.
Four methods are given:
A: manual; specimens are taken directly from conditioned packages;
B: automatic; specimens are taken directly from conditioned packages;
C: manual; relaxed test skeins are used after conditioning;
D: manual; specimens are used after wetting.
Method C is used in cases of dispute regarding elongation at break of the yarn.
ISO 2062:2009 specifies methods using constant rate of specimen extension (CRE) tensile testers. Testing on the now obsolete constant rate of travel (CRT) and constant rate of loading (CRL) instruments is covered, for information, in Annex A, in recognition of the fact that these instruments are still in use and can be used by agreement.
ISO 2062:2009 applies to all types of yarns, except glass, elastomeric, aramid, high molecular polyethylene (HMPE), ultra high molecular polyethylene (UHMPE), ceramic and carbon yarns and polyolefin tape.
ISO 2062:2009 is applicable to yarns from packages but can be applied to yarns extracted from fabrics, subject to agreement between the interested parties.
ISO 2062:2009 is intended for the single-end (single-strand) testing of yarns.

Textilien - Garne von Aufmachungseinheiten - Bestimmung der Höchstzugkraft und Höchstzugkraftdehnung von Garnabschnitten unter Verwendung eines Prüfgeräts mit konstanter Verformungsgeschwindigkeit (CRE) (ISO 2062:2009)

1.1   Diese Internationale Norm legt Verfahren für die Bestimmung der Höchstzugkraft und der Höchst-zugkraftdehnung von textilen Garnen fest, welche Aufmachungseinheiten entnommen werden.
Vier Verfahren sind festgelegt:
   A: manuell; Messproben werden direkt den klimatisierten Aufmachungseinheiten ent¬nommen;
   B: automatisch; Messproben werden direkt den klimatisierten Aufmachungseinheiten ent¬nommen;
   C: manuell; es werden spannungsfreie klimatisierte Prüfstränge verwendet;
   D: manuell; es werden benetzte Prüfstränge verwendet; Nassprüfung.
1.2   Verfahren C wird in strittigen Fällen bezüglich der Höchstzugkraftdehnung der Garne verwendet.
ANMERKUNG   Es ist zu erwarten, dass die Verfahren A, B und C für die Garnfestigkeit zu den gleichen Ergebnissen führen, Verfahren C dürfte jedoch zu etwas genaueren (und höheren) Dehnungswerten als A oder B führen. Verfahren D wird wahrscheinlich zu Ergebnissen führen, welche für Höchstzugkraft und Höchstzugkraftdehnung von den Ergebnissen nach Verfahren A, B und C abweichen.
1.3   Diese Internationale Norm legt Verfahren zur Verwendung von Zugprüfgeräten mit konstanter Ver-formungsgeschwindigkeit der Messproben (CRE) fest. Eine Prüfung auf den nun veralteten Geräten mit konstanter Abzugsgeschwindigkeit (CRT) und konstanter Belastung (CRL) wird zur Information in Anhang A erläutert, womit die Tatsache Berücksichtigung findet, dass diese Geräte noch immer in Gebrauch sind und, wenn dies vereinbart wird, verwendet werden dürfen.
1.4   Diese Internationale Norm gilt für alle Arten von Garnen, ausgenommen Glasgarne, Elastogarne, Aramidgarne, Polyethylengarne mit hohem (HMPE) oder ultrahohem Molekulargewicht (UHMPE), keramische Garne, Kohlenstoffgarne und Polyolefin Bändchen.
ANMERKUNG   Ein Verfahren zur Prüfung von Glasgarnen ist in ISO 3341 festgelegt.

Textiles - Fils sur enroulements - Détermination de la force de rupture et de l'allongement à la rupture des fils individuels à l'aide d'un appareil d'essai à vitesse constante d'allongement (ISO 2062:2009)

L'ISO 2062:2009 spécifie des méthodes de détermination de la force de rupture et de l'allongement à la rupture de fils textiles prélevés sur enroulements.
Quatre méthodes sont décrites:
A: manuelle; éprouvettes prélevées directement sur des enroulements conditionnés;
B: automatique; éprouvettes prélevées directement sur des enroulements conditionnés;
C: manuelle; échevettes d'essai relaxées après conditionnement;
D: manuelle; éprouvettes mouillées.
La méthode C est utilisée en cas de litige portant sur l'allongement à la rupture du fil.
L'ISO 2062:2009 spécifie des méthodes utilisant des appareils d'essai de traction à gradient d'allongement constant (GAC) de l'éprouvette. Les méthodes faisant appel à des instruments à gradient de déplacement constant (GDC) et à gradient de force constant (GFC), désormais obsolètes, sont traitées pour information à l'Annexe A, eu égard au fait que ces instruments sont toujours utilisés et que leur utilisation peut faire l'objet d'un accord entre les parties intéressées.
L'ISO 2062:2009 s'applique à tous les types de fils, à l'exception des fils de verre, d'élastomère, d'aramide, de polyéthylène à haut poids moléculaire (HMPE), de polyéthylène à très haut poids moléculaire (UHMPE), de céramique, de carbone et des filaments continus en polyoléfine.
L'ISO 2062:2009 est applicable aux fils sur enroulements mais elle peut être appliquée aux fils extraits des tissus, après accord entre les parties intéressées.
L'ISO 2062:2009 est destinée aux essais sur fils individuels.

Tekstilije - Preje iz navitkov - Ugotavljanje pretržne sile in pretržnega raztezka na posameznih odrezkih preje na napravah s konstantno hitrostjo raztezanja (CRE) (ISO 2062:2009)

Ta mednarodni standard določa metode za ugotavljanje pretržne sile in raztezka na odrezkih tekstilnih prej iz navitkov. Podane so štiri metode: - A: ročna; vzorci se vzamejo neposredno iz obdelanih navitkov; - B: avtomatska; vzorci se vzamejo neposredno iz obdelanih navitkov; - C: ročna; po obdelavi se uporabijo ohlapne preskusne štrenice; - D: ročna; vzorci se uporabijo po omočenju. Metoda C se uporablja v primerih spora glede raztezka na posameznih odrezkih preje. Ta mednarodni standard določa metode, ki uporabljajo naprave s konstantno hitrostjo raztezanja (CRE). V informativne namene Priloga A zajema preskušanje na sedaj zastarelih instrumentih s konstantno hitrostjo potovanja (CRT) in konstantno hitrostjo nalaganja (CRL) kot priznavanje dejstva, da so ti instrumenti še vedno v uporabi in se lahko uporabijo po dogovoru. Ta mednarodni standard velja za vse vrste prej, razen steklene, elastomerne in aramidne preje, preje iz visokomolekularnega polietilena (HMPE) in ultra visokomolekularnega polietilena (UHMPE), keramične in karbonske preje ter poliolefinske trakove. Ta mednarodni standard velja za preje iz navitkov, vendar se lahko uporabi tudi za preje, pridobljene iz blaga, v skladu z dogovorom med zainteresiranimi strankami. Ta mednarodni standard je namenjen preskušanju posameznih odrezkov (enojnega pramena) prej.

General Information

• Status: Published
• Publication Date: 30-Nov-2009
• Withdrawal Date: 29-Jun-2010
• ICS: 59.080.20 - Yarns
• 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: 01-Dec-2009
• Due Date: 10-Mar-2011
• Completion Date: 01-Dec-2009
• Ref Project: SIST EN ISO 2062:2010 - Textiles - Yarns from packages - Determination of single-end breaking force and elongation at break using constant rate of extension (CRE) tester (ISO 2062:2009)

Relations

• Replaces: EN ISO 2062:1995 - Textiles - Yarns from packages - Determination of single-end breaking force and elongation at break (ISO 2062:1993)
• Effective Date: 08-Jun-2022

Overview

EN ISO 2062:2009 - “Textiles - Yarns from packages - Determination of single‑end breaking force and elongation at break using constant rate of extension (CRE) tester” - defines standardized methods for measuring the breaking force and elongation at break of textile yarns taken from packages. The standard covers single‑end (single‑strand) testing using CRE tensile testers and provides four test methods (A–D) for manual or automatic sampling and for wetted or relaxed skein conditions.

Key topics and technical requirements

• Test methods
  • Method A: Manual - specimens taken directly from conditioned packages.
  • Method B: Automatic - specimens taken directly from conditioned packages.
  • Method C: Manual - relaxed test skeins used after conditioning (used when elongation disputes arise).
  • Method D: Manual - specimens tested after wetting.
• CRE tester specification
  • Tests use a constant rate of specimen extension (standard rate 100%/min based on gauge length).
  • Permitted gauge lengths: 500 mm (usual) or 250 mm (exceptional).
  • Typical extension rates: 500 mm/min (for 500 mm gauge) or 250 mm/min (for 250 mm gauge); accuracy and force‑measurement tolerances are specified.
  • Clamps/jaws must prevent slip or cutting; flat unlined jaws are normal but alternatives (lined jaws, bollard clamps) may be used by agreement.
  • Autographic or direct recording of force and elongation required.
• Scope limitations
  • Applicable to most yarn types except glass, elastomeric, aramid, HMPE, UHMPE, ceramic, carbon yarns and polyolefin tape.
  • Can be applied to yarns extracted from fabric only by agreement.
• Sampling and statistics
  • Sampling procedures and minimum specimen numbers are specified (with higher specimen counts for determining variability).
  • Preconditioning and testing atmospheres follow ISO 139.
• Informative annex
  • Annex A describes obsolete CRT and CRL testers for information and by agreement only.

Applications

• Routine quality control and acceptance testing of yarn strength and elongation for spinning mills, yarn manufacturers, test laboratories and textile converters.
• Resolving disputes over yarn elongation (use Method C).
• Specifying contract test methods in procurement, compliance and R&D where standardized single‑end tensile properties are required.
• Selection of packaging and processing parameters based on measured tensile behavior.

Who uses this standard

• Textile test laboratories, manufacturers of yarn and knitted/woven fabrics, product specifiers, quality managers, and R&D engineers involved in yarn performance evaluation.

Related standards

• ISO 139 - Standard atmospheres for conditioning and testing
• ISO 2060 - Yarn linear density (skein method)
• ISO 3341 - Glass yarn testing (separate method)
• ISO 6939 - Skein method of yarn testing

Keywords: EN ISO 2062:2009, yarn breaking force, CRE tester, textile yarn testing, elongation at break, single‑end testing, yarns from packages.

Standards Content (Sample)

SLOVENSKI STANDARD
01-marec-2010
1DGRPHãþD
SIST EN ISO 2062:2002
Tekstilije - Preje iz navitkov - Ugotavljanje pretržne sile in pretržnega raztezka na
posameznih odrezkih preje na napravah s konstantno hitrostjo raztezanja (CRE)
(ISO 2062:2009)
Textiles - Yarns from packages - Determination of single-end breaking force and
elongation at break using constant rate of extension (CRE) tester (ISO 2062:2009)
Textilien - Garne von Aufmachungseinheiten - Bestimmung der Höchstzugkraft und
Höchstzugkraftdehnung von Garnabschnitten unter Verwendung eines Prüfgeräts mit
konstanter Verformungsgeschwindigkeit (CRE) (ISO 2062:2009)
Textiles - Fils sur enroulements - Détermination de la force de rupture et de
l'allongement à la rupture des fils individuels à l'aide d'un appareil d'essai à vitesse
constante d'allongement (ISO 2062:2009)
Ta slovenski standard je istoveten z: EN ISO 2062:2009
ICS:
59.080.20 Preje Yarns
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 2062
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2009
ICS 59.080.20 Supersedes EN ISO 2062:1995
English Version
Textiles - Yarns from packages - Determination of single-end
breaking force and elongation at break using constant rate of
extension (CRE) tester (ISO 2062:2009)
Textiles - Fils sur enroulements - Détermination de la force Textilien - Garne von Aufmachungseinheiten - Bestimmung
de rupture et de l'allongement à la rupture des fils der Höchstzugkraft und Höchstzugkraftdehnung von
individuels à l'aide d'un appareil d'essai à vitesse constante Garnabschnitten unter Verwendung eines Prüfgeräts mit
d'allongement (ISO 2062:2009) konstanter Verformungsgeschwindigkeit (CRE) (ISO
2062:2009)
This European Standard was approved by CEN on 21 November 2009.

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 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 Management Centre has the same status as the
official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2009 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 2062:2009: E
worldwide for CEN national Members.

Contents Page
Foreword .3

Foreword
This document (EN ISO 2062:2009) 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 June 2010, and conflicting national standards shall be withdrawn at
the latest by June 2010.
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.
This document supersedes EN ISO 2062:1995.
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, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
Endorsement notice
The text of ISO 2062:2009 has been approved by CEN as a EN ISO 2062:2009 without any modification.

INTERNATIONAL ISO
STANDARD 2062
Third edition
2009-12-01
Textiles — Yarns from packages —
Determination of single-end breaking
force and elongation at break using
constant rate of extension (CRE) tester
Textiles — Fils sur enroulements — Détermination de la force de
rupture et de l'allongement à la rupture des fils individuels à l'aide d'un
appareil d'essai à vitesse constante d'allongement

Reference number
ISO 2062:2009(E)
©
ISO 2009
ISO 2062:2009(E)
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ii © ISO 2009 – All rights reserved

ISO 2062:2009(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 2062 was prepared by Technical Committee ISO/TC 38, Textiles, Subcommittee SC 23, Fibres and yarns.
This third edition cancels and replaces the second edition (ISO 2062:1993), which has been technically
revised.
ISO 2062:2009(E)
Introduction
In the 1950s and 1960s when this International Standard was first prepared, three types of tensile testers
were in wide use: constant rate of specimen extension (CRE), constant rate of travel (CRT) and constant rate
of loading (CRL). It was therefore advisable to state the rate of operation in a way which would be common to
all three types of tester. In addition, the best possible agreement was sought between the test results of the
three types of tester. Consequently, the principle of constant time to break was adopted, and 20 s to break
was chosen for this International Standard and also for a number of national standards.
In the early 1990s, CRE testers were recognized as the best type. As CRT and CRL testers were still in use
internationally, the procedure for using them was included in an informative annex. There is no assurance that
the results from the three types of tester will agree. This International Standard considers CRE testers only, so
the time-to-break principle was no longer needed and a simpler statement of rate of extension was used. The
rate of extension of 100 % per minute has been adopted as standard, but higher rates were permitted by
agreement for automatic testers.
CRT and CRL testers are now considered to be obsolete. The methods of using them are deprecated and
their inclusion in informative Annex A does not have an influence on the status of this International Standard.

iv © ISO 2009 – All rights reserved

INTERNATIONAL STANDARD ISO 2062:2009(E)

Textiles — Yarns from packages — Determination of single-end
breaking force and elongation at break using constant rate of
extension (CRE) tester
1 Scope
1.1 This International Standard specifies methods for the determination of the breaking force and
elongation at break of textile yarns taken from packages.
Four methods are given:
⎯ A: manual; specimens are taken directly from conditioned packages;
⎯ B: automatic; specimens are taken directly from conditioned packages;
⎯ C: manual; relaxed test skeins are used after conditioning;
⎯ D: manual; specimens are used after wetting.
1.2 Method C is used in cases of dispute regarding elongation at break of the yarn.
NOTE Methods A, B and C are expected to give the same results for yarn strength, but Method C might give
somewhat truer (and higher) values of elongation than A or B. Method D is likely to give results differing, for both breaking
force and elongation at break, from those obtained by methods A, B or C.
1.3 This International Standard specifies methods using constant rate of specimen extension (CRE) tensile
testers. Testing on the now obsolete constant rate of travel (CRT) and constant rate of loading (CRL)
instruments is covered, for information, in Annex A, in recognition of the fact that these instruments are still in
use and can be used by agreement.
1.4 This International Standard applies to all types of yarns, except glass, elastomeric, aramid, high
molecular polyethylene (HMPE), ultra high molecular polyethylene (UHMPE), ceramic and carbon yarns and
polyolefin tape.
NOTE A method for the testing of glass yarns is given in ISO 3341.
1.5 This International Standard is applicable to yarns from packages but can be applied to yarns extracted
from fabrics, subject to agreement between the interested parties.
1.6 This International Standard is intended for the single-end (single-strand) testing of yarns.
NOTE The skein method of testing is given in ISO 6939.
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 2062:2009(E)
ISO 139, Textiles — Standard atmospheres for conditioning and testing
ISO 2060, Textiles — Yarn from packages — Determination of linear density (mass per unit length) by the
skein method
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
breaking force
maximum force applied to a specimen in a tensile test carried to rupture
NOTE For yarns, the breaking force or load is preferably expressed in centinewtons.
3.2
elongation at break
increase in length of a specimen corresponding to the breaking force
NOTE For yarns, elongation at break is expressed as a percentage of the initial length.
3.3
breaking tenacity
ratio of a yarn's breaking force to its linear density
NOTE For yarns, breaking tenacity is expressed in centinewtons per tex.
3.4
constant rate of specimen extension (CRE) tester
testing machine in which one end of the specimen is held in a virtually stationary clamp and the other end is
gripped in a clamp that is driven at a constant speed
NOTE A suitable system is provided for detecting and recording the force applied and the elongation.
3.5
clamp
that part of a tensile testing machine used to grip the specimen by means of suitable jaws
3.6
jaws
those elements of a clamp which grip the specimen
3.7
gauge length
nominal length
distance between the clamping points of the tester
NOTE With bollard or capstan clamps, it is the distance between their gripping points, measured along the path of
the yarn.
3.8
initial length
length of a test specimen (between the clamping points) under specified pretension at the beginning of the test
3.9
package
length of yarn in a form suitable for use, handling, storing, etc.
NOTE Packages can be supported (e.g. cones, bobbins) or unsupported (e.g. skeins, balls).
2 © ISO 2009 – All rights reserved

ISO 2062:2009(E)
4 Principle
A specimen of yarn is extended until rupture by a suitable mechanical device, and the breaking force and
elongation at break are recorded. A constant rate of extension of 100 % per minute (based on the gauge
length) is used, but higher or lower rates are permitted by agreement. Two gauge lengths are permitted:
usually 500 mm (with a rate of extension of 500 mm/min), and exceptionally 250 mm (with a rate of extension
of 250 mm/min).
5 Apparatus and reagents
5.1 Constant rate of specimen extension (CRE) tester, which complies with the following requirements.
The tester shall be capable of being set at gauge lengths of 500 mm ± 2 mm or 250 mm ± 1 mm, or preferably
both.
The constant rate of extension of the moving clamp shall be 500 mm/min ± 10 mm/min or
250 mm/min ± 5 mm/min, to an a
...