ISO/TR 12960:1998
(Main)Geotextiles and geotextile-related products — Screening test method for determining the resistance to liquids
Geotextiles and geotextile-related products — Screening test method for determining the resistance to liquids
Géotextiles et produits apparentés — Méthode d'essai pour la détermination de la résistance aux liquides
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Standards Content (Sample)
TECHNICAL ISO/TR
REPORT 12960
First edition
1998-11-01
Geotextiles and geotextile-related
products — Screening test method for
determining the resistance to liquids
Géotextiles et produits apparentés — Méthode d'essai pour
la détermination de la résistance aux liquides
A
Reference number
ISO/TR 12960:1998(E)
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ISO/TR 12960:1998(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
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collaborates closely with the International Electrotechnical Commission
(IEC) on all matters of electrotechnical standardization.
The main task of technical committees is to prepare International
Standards, but in exceptional circumstances a technical committee may
propose the publication of a Technical Report of one of the following types:
— type 1, when the required support cannot be obtained for the
publication of an International Standard, despite repeated efforts;
— type 2, when the subject is still under technical development or where
for any other reason there is the future but not immediate possibility of
an agreement on an International Standard;
— type 3, when a technical committee has collected data of a different
kind from that which is normally published as an International Standard
(“state of the art”, for example).
Technical Reports of types 1 and 2 are subject to review within three years
of publication, to decide whether they can be transformed into International
Standards. Technical Reports of type 3 do not necessarily have to be
reviewed until data they provide are considered to be no longer valid or
useful.
Technical Reports are drafted in accordance with the rules given in the
ISO/IEC Directives, Part 3.
Attention is drawn to the possibility that some of the elements of this
Technical Report ISO/TR 12960 may be the subject of patent rights. ISO
shall not be held responsible for identifying any or all such patent rights.
© ISO 1998
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced
or utilized in any form or by any means, electronic or mechanical, including photocopying and
microfilm, without permission in writing from the publisher.
International Organization for Standardization
Case postale 56 • CH-1211 Genève 20 • Switzerland
Internet iso@iso.ch
Printed in Switzerland
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©
ISO ISO/TR 12960:1998(E)
ISO/TR 12960, which is a Technical Report of type 2, was prepared by the
European Committee for Standardization (CEN) in collaboration with ISO
Technical Committee TC 38, Textiles, Subcommittee SC 21, Geotextiles, in
accordance with the Agreement on technical cooperation between ISO and
CEN (Vienna Agreement).
Throughout the text of this document, read “.this European prestandard.”
to mean “.this Technical Report.”.
This document is being issued in the Technical Report (type 2) series of
publications (according to subclause G.3.2.2 of Part 1 of the ISO/IEC
Directives, 1995) as a “prospective standard for provisional application” in
the field of Geotextiles because there is an urgent need for guidance on
how standards in this field should be used to meet an identified need.
This document is not to be regarded as an “International Standard”. It is
proposed for provisional application so that information and experience of
its use in practice may be gathered. Comments on the content of this
document should be sent to the ISO Central Secretariat.
A review of this Technical Report (type 2) will be carried out not later than
three years after its publication with the options of: extension for another
three years; conversion into an International Standard; or withdrawal.
Annex A of this Technical Report is for information only.
Annex ZZ provides a list of corresponding International and European
Standards for which equivalents are not given in the text.
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©
ISO/TR 12960:1998(E) ISO
Foreword
The text of ENV ISO 12960:1998 has been prepared by Technical Committee
CEN/TC 189 "Geotextiles and geotextile-related products", the secretariat of which
is held by IBN, in collaboration with Technical Committee ISO/TC 38 "Textiles".
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, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain,
Sweden, Switzerland and the United Kingdom.
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ISO ISO/TR 12960:1998(E)
Introduction
In nearly all applications geotextiles and geotextile-related products (geotextile
products) may be in contact with aqueous solutions of acids, bases or dissolved
oxygen. The resistance of geotextile products to these chemicals depends on the
one hand on polymer formulation, processing, textile structure and the presence of
existing damage and on the other hand on the composition of the liquid and in situ
conditions such as temperature, pressure and the presence of further mechanical
stress.
It is the purpose of this prestandard to provide a method of screening (index testing)
the resistance of geotextile products to these acids and bases.
Since an index test requires exposure times that are short compared to the expected
lifetimes of geotextile products, it is necessary to accelerate the process. The data
obtainable are suitable for screening but not for deriving performance data such as
lifetime, unless supported by further evidence.
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ISO ISO/TR 12960:1998(E)
1 Scope
This standard specifies methods for screening the resistance of geotextile products
to liquids while not subjecting them to external mechanical stress.
The standard is applicable to all geotextiles and geotextile related products.
NOTE: This standard only considers conditions where the specimens are
fully immersed in the liquids. Though outside the scope of this standard,
the test conditions may be modified to accommodate particular
applications, eg gaseous media. This standard does not preclude use for
test specimens that are pre-treated by some method, e.g. by weathering,
aqueous extraction conditions or installation damage.
2 Normative references
This European prestandard 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 prestandard only when incorporated in it by amendment or revision. For
undated references the latest edition of the publication refer
...
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