SIST EN ISO 10776:2012

SLOVENSKI STANDARD
SIST EN ISO 10776:2012
01-oktober-2012
Geotekstilije in sorodni izdelki - Ugotavljanje lastnosti vodne prepustnosti
(permeabilnosti), pravokotno na ravnino, pod obremenitvijo (ISO 10776:2012)
Geotextiles and geotextile-related products - Determination of water permeability
characteristics normal to the plane, under load (ISO 10776:2012)
Geotextilien und geotextilverwandte Produkte - Bestimmung der Wasserdurchlässigkeit
normal zur Ebene unter Auflast (ISO 10776:2012)
Géotextiles et produits apparentés - Détermination de la perméabilité à l'eau
normalement au plan, sous contrainte (ISO 10776:2012)
Ta slovenski standard je istoveten z: EN ISO 10776:2012
ICS:
59.080.70 Geotekstilije Geotextiles
SIST EN ISO 10776:2012 en,fr
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 10776:2012

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SIST EN ISO 10776:2012


EUROPEAN STANDARD
EN ISO 10776

NORME EUROPÉENNE

EUROPÄISCHE NORM
August 2012
ICS 59.080.70
English Version
Geotextiles and geotextile-related products - Determination of
water permeability characteristics normal to the plane, under
load (ISO 10776:2012)
Géotextiles et produits apparentés - Détermination des Geotextilien und geotextilverwandte Produkte -
caractéristiques de perméabilité à l'eau, Bestimmung der Wasserdurchlässigkeit normal zur Ebene
perpendiculairement au plan et sous contrainte (ISO unter Auflast (ISO 10776:2012)
10776:2012)
This European Standard was approved by CEN on 18 August 2012.

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-CENELEC 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-CENELEC Management Centre has the same
status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
Kingdom.





EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2012 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 10776:2012: E
worldwide for CEN national Members.

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SIST EN ISO 10776:2012
EN ISO 10776:2012 (E)
Contents Page
Foreword .3

2

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SIST EN ISO 10776:2012
EN ISO 10776:2012 (E)
Foreword
This document (EN ISO 10776:2012) has been prepared by Technical Committee ISO/TC 221
"Geosynthetics" in collaboration with Technical Committee CEN/TC 189 “Geosynthetics” the secretariat of
which is held by NBN.
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 February 2013, and conflicting national standards shall be withdrawn
at the latest by February 2013.
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.
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, Croatia, Cyprus, Czech
Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece,
Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
Endorsement notice
The text of ISO 10776:2012 has been approved by CEN as EN ISO 10776:2012 without any modification.

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SIST EN ISO 10776:2012

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SIST EN ISO 10776:2012
INTERNATIONAL ISO
STANDARD 10776
First edition
2012-08-15
Geotextiles and geotextile-related
products — Determination of water
permeability characteristics normal to the
plane, under load
Géotextiles et produits apparentés — Détermination des
caractéristiques de perméabilité à l’eau, perpendiculairement au plan et
sous contrainte
Reference number
ISO 10776:2012(E)
©
ISO 2012

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SIST EN ISO 10776:2012
ISO 10776:2012(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2012
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 either ISO at the address below or ISO’s
member body in the country of the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2012 – All rights reserved

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SIST EN ISO 10776:2012
ISO 10776:2012(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Specimens . 1
5.1 Handling . 1
5.2 Selection . 1
5.3 Number and dimensions . 2
5.4 Specimen conditions . 2
6 Apparatus, water supply and measuring devices . 2
6.1 Apparatus . 2
6.2 Water supply, quality and condition . 6
6.3 Measuring devices . 6
7 Procedure . 6
8 Calculation and expression of results . 7
9 Test report . 8
© ISO 2012 – All rights reserved iii

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SIST EN ISO 10776:2012
ISO 10776:2012(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 10776 was prepared by Technical Committee ISO/TC 221, Geosynthetics.
iv © ISO 2012 – All rights reserved

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SIST EN ISO 10776:2012
INTERNATIONAL STANDARD ISO 10776:2012(E)
Geotextiles and geotextile-related products — Determination of
water permeability characteristics normal to the plane, under load
1 Scope
This International Standard describes a method for determining the water permeability characteristics of geotextiles
or geotextile-related products normal to the plane when subjected to specific normal compressive loads.
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 2854, Statistical interpretation of data — Techniques of estimation and tests relating to means and variances
ISO 5813, Water quality — Determination of dissolved oxygen — Iodometric method
ISO 9862, Geosynthetics — Sampling and preparation of test specimens
ISO 10318, Geosynthetics — Terms and definitions.
ISO 10320, Geotextiles and geotextile-related products — Identification on site
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
flow velocity
v
N50/σ
flow velocity normal to the plane at a 50 mm water head under a compressive stress σ (2, 20 and 200 kPa)
NOTE The flow velocity is expressed in metres per second.
4 Principle
The flow of water normal to the plane of a geotextile or geotextile-related product is measured under a range
of constant heads under a compressive stress of 2, 20 and 200 kPa.
5 Specimens
5.1 Handling
The sample shall not be folded and shall be handled as infrequently as possible to avoid disturbance to its
structure. The sample shall be kept in a flat position without any load.
5.2 Selection
Take specimens from the sample according to ISO 9862.
© ISO 2012 – All rights reserved 1

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SIST EN ISO 10776:2012
ISO 10776:2012(E)
5.3 Number and dimensions
Cut five test specimens from the sample, each of suitable dimensions for the water permeability apparatus to
be used.
Where it is necessary to determine the results to within a given confidence interval of the mean, determine the
number of test specimens in accordance with ISO 2854.
5.4 Specimen conditions
The specimens shall be clean, free from surface deposits and without visible damage or folding marks.
6 Apparatus, water supply and measuring devices
6.1 Apparatus
The apparatus shall be capable of allowing free water flow through the spec
...