EN ISO 7854:1997

Rubber- or plastics-coated fabrics - Determination of resistance to damage by flexing (ISO 7854:1995)

Describes the De Mattia method, Schildknecht method and crumple/flex method for the assessment of the resistance of coated fabrics to damage by repeated flexing. Cancels and replaces the first edition, which has been technically revised.

Mit Kautschuk oder Kunststoff beschichtete Textilien - Bestimmung der Beständigkeit gegen Beschädigung durch Biegen (ISO 7854:1995)

Diese Internationale Norm beschreibt drei Verfahren für die Bewertung der Beständigkeit beschichteter Textilien gegen Schädigung durch wiederholte Biegebeanspruchung.

Supports textiles revêtus de caoutchouc ou de plastique - Détermination de la résistance à la flexion (ISO 7854:1995)

La présente Norme internationale prescrit trois méthodes pour la détermination de la résistance des supports textiles revêtus à un endommagement par flexions répétées.

Gumirane ali plastificirane tekstilije - Ugotavljanje odpornosti proti poškodbam zaradi upogibanja (ISO 7854:1995)

General Information

• Status: Published
• Publication Date: 18-Mar-1997
• Withdrawal Date: 29-Sep-1997
• ICS: 83.140 - Rubber and plastics products
• Technical Committee: CEN/TC 248 - Textiles and textile products
• Drafting Committee: CEN/TC 248/WG 4 - Coated fabrics
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Start Date: 14-Jun-2006
• Completion Date: 14-Jun-2006
• Ref Project: SIST EN ISO 7854:1999 - Rubber- or plastics-coated fabrics - Determination of resistance to damage by flexing (ISO 7854:1995)

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 7854:1999
01-marec-1999
Gumirane ali plastificirane tekstilije - Ugotavljanje odpornosti proti poškodbam
zaradi upogibanja (ISO 7854:1995)
Rubber- or plastics-coated fabrics - Determination of resistance to damage by flexing
(ISO 7854:1995)
Mit Kautschuk oder Kunststoff beschichtete Textilien - Bestimmung der Beständigkeit
gegen Beschädigung durch Biegen (ISO 7854:1995)
Supports textiles revetus de caoutchouc ou de plastique - Détermination de la résistance
a la flexion (ISO 7854:1995)
Ta slovenski standard je istoveten z: EN ISO 7854:1997
ICS:
59.080.40 3RYUãLQVNRSUHYOHþHQH Coated fabrics
WHNVWLOLMH
SIST EN ISO 7854:1999 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 7854:1999

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SIST EN ISO 7854:1999

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SIST EN ISO 7854:1999

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SIST EN ISO 7854:1999

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SIST EN ISO 7854:1999

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SIST EN ISO 7854:1999
INTERNATIONAL ISO
STANDARD 7854
Second edition
1995-08-15
Rubber- or plastics-coated fabrics -
Determination of resistance to darnage
by flexing
Supports textiles rev6tus de caoutchouc ou de plastique - Determination
de Ia rdsistance 2 Ia flexion
Reference number
ISO 7854:1995(E)

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SIST EN ISO 7854:1999
ISO 7854:1995(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. Esch 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
(1 EC) on all matters of electrotechnical standardization.
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.
International Standard ISO 7854 was prepared by Technical Committee
ISOJTC 45, Rubber and rubber products.
This second edition cancels and replaces the first edition (ISO 7854:
1984), which has been technically revised.
Annex A of this International Standard is for information only.
0 ISO 1995
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced
or utilized in any form or by any means, electronie or mechanical, including photocopying and
mrcrofilm, without permission in writing from the publisher.
International Organization for Standardization
Case Postale 56 l CH-l 211 Geneve 20 l Swi tzerlan d
Printed in Switzerland

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SIST EN ISO 7854:1999
0 ISO
ISO 7854: 1995(E)
Introduction
Investigation of dynamic-flex fatigue properties of coated fabrics has for
a number of years suffered from poor repeatability (due in part to the un-
known but inevitable variability of the material tested) and worse
reproducibility. Nevertheless, dynamic-flex performante of coated fabrics
has been long and widely used as a measure of the product quality.
The methods traditionally used suffered from the common deficiency of
testing only a small test piece. The De Mattia test is unsuitable for ma-
terials that exhibit “Set ”, such as thermoplastics, and the Schildknecht
method has disadvantages when testing the heavier industrial fabrics and
also tends to require very high geometric ratios and consequently time-
consuming tests to verify results. In addition, the mounting of
Schildknecht test pieces tan seriously affect test results and repeatability.
Both the De Mattia and Schildknecht methods are also uni-directional,
which in some cases is advantageous, but in many cases is not appropri-
ate, e.g. where bi-directional Stresses are exerted during use.
This revised edition of ISO 7854 attempts to standardize the mounting
difficulties associated with the Schildknecht apparatus (method B) and in-
troduces a bi-directional flex fatigue test that provides a large test piece,
enabling post-flexing investigations, such as hydrostatic-head tests, to be
conducted. The apparatus is described in ISO 8096-3:1988, Rubber- or
plas tics-cos ted fabrics for wa ter-resis tan t clo thing - Specifica tion -
fabrics. The apparatus
Part 3: Natura/ rubber- and synthetic rubber-coated
outlined there in illustrative form (see the
...