EN ISO 22776:2004

SLOVENSKI STANDARD
01-april-2005
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Footwear - Test methods for accessories: Touch and close fasteners - Shear strength
before and after repeated closing (ISO 22776:2004)
Schuhe - Prüfverfahren für Zubehör: Haftverschlüsse - Scherfestigkeit vor und nach
wiederholtem Schließen (ISO 22776:2004)
Chaussures - Méthodes d'essai pour accessoires : fermetures auto-agrippantes -
Résistance a la traction avant et apres un usage répété (ISO 22776:2004)
Ta slovenski standard je istoveten z: EN ISO 22776:2004
ICS:
61.060 Obuvala Footwear
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 22776
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2004
ICS 61.060
English version
Footwear - Test methods for accessories: Touch and close
fasteners - Shear strength before and after repeated closing
(ISO 22776:2004)
Chaussures - Méthodes d'essai pour accessoires : Schuhe - Prüfverfahren für Zubehör: Haftverschlüsse -
fermetures auto-agrippantes - Résistance à la traction Scherfestigkeit vor und nach wiederholtem Schließen (ISO
avant et après un usage répété (ISO 22776:2004) 22776:2004)
This European Standard was approved by CEN on 23 August 2004.
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 Central Secretariat 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 Central Secretariat has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,
Slovenia, 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
© 2004 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 22776:2004: E
worldwide for CEN national Members.

Contents
Page
Foreword.3
1 Scope .4
2 Normative references .4
3 Terms and definitions .4
4 Principle.4
4.1 Shear strength.4
4.2 Shear strength after repeated opening and closing .4
5 Apparatus .5
6 Test specimens.8
7 Conditioning.8
8 Procedure .9
9 Calculation and expression of results.11
10 Test report .11
Annex ZA (normative) Normative references to International publications with their
corresponding European publications.12

Foreword
This document (EN ISO 22776:2004) has been prepared by Technical Committee CEN/TC 309 "Footwear",
the secretariat of which is held by AENOR, in collaboration with Technical Committee ISO/TC 216 "Footwear".
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 2005, and conflicting national standards shall be withdrawn at
the latest by June 2005.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland
and United Kingdom.
1 Scope
This document specifies a test method for determining the longitudinal shear strength of touch and close
fasteners before and after repeated use.
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.
EN 12222, Footwear - Standard atmospheres for conditioning and testing of footwear and components for
footwear
EN 12240, Touch and close fasteners — Determination of the overall and effective widths of tapes and the
effective width of a closure
EN ISO 7500-1, Metallic materials — Verification of static uniaxial testing machines — Part 1:
Tension/compression testing machines — Verification and calibration of the force-measuring system (ISO
7500-1:2004)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
longitudinal shear strength
maximum force per unit effective area required to separate the two tapes forming the specified closure in a
shearing action under the specified conditions of test
3.2
effective width
width of the pile at 90° to the length of the tape and which does not include the selvedge
3.3
effective area of a closure
product of the effective width of a closure and the length of a closure
4 Principle
4.1 Shear strength
Mated component tapes of a touch and close fastener are separated at a constant rate along the closure in a
direction parallel to the length of the tapes forming the closure and in the plane of the closure.
4.2 Shear strength after repeated opening and closing
A touch and close fastener is repeatedly opened and closed a standard number of times by a machine. The
shear strength is then measured by repeating the test described in 4.1.
5 Apparatus
5.1 A tensile testing machine complying with the requirements of EN ISO 7500-1 to an accuracy
corresponding to class 2, and with the following:
5.1.1 A jaw separation rate of 100 mm/min ± 10 mm/min.
5.1.2 The means of producing a continuous record of force throughout the test.
5.2 A roller device with a roller (see Figure 1) of diameter 100 mm ± 5 mm capable of applying a force of
1,0 N ± 0,1 N per millimetre width of the test specimen. This is to close the fastener under a standard pressure.
5.3 Fork with a handle (see Figure 2) which engages the roller (5.2) and allows it to be moved without any
extra down force being applied (see Figure 3).

Dimensions in mm
Figure 1 — Roller
Dimensions in mm
Key
1 Handle
2 Forks
3 Space between the forks to be 2 mm greater than the roller width
Figure 2 — Fork with a handle
Figure 3 — Rolling mechanism for touch and close fasteners
...