Geotextiles and geotextile-related products - Screening test method for determining the resistance to hydrolysis in water

This European Standard specifies a screening test method for determining the resistance of geotextiles and geotextile-related products to hydrolysis by exposing test specimens to water at elevated temperatures, followed by an evaluation of the changes in properties resulting from such exposure. It is intended as a means of establishing a minimum acceptable level of durability.
The test is applicable to any geotextile and geotextile-related product susceptible to hydrolysis, in particular polyester and polyamide based materials, and in addition to the yarns from which these geotextiles are made. Reinforcing materials shall be tested without the coating and manufacturers shall ensure that the degradation of the coating will not attack or have any negative influence on the degradation of the yarns.
This method is not intended for determining the resistance of geotextiles to hydrolysis under highly acid or alkaline conditions.
NOTE   Performance tests to predict long-term lifetime or to compare products of different polymers or of similar polymers with differing structures can be based on the same method but with a wider range of temperatures and durations.

Geotextilien und geotextilverwandte Produkte - Auswahlprüfverfahren zur Bestimmung der Hydrolysebeständigkeit in Wasser

Dieses Dokument legt ein Prüfverfahren zur Bestimmung der Beständigkeit von Geotextilien und geotextilverwandten Produkten gegen Hydrolyse fest, indem Messproben bei erhöhten Temperaturen Wasser ausgesetzt und dann bewertet werden, um die durch diese Einflüsse bedingten Eigenschaftsänderungen zu ermitteln. Das Prüfverfahren ist zur Festlegung einer Mindestanforderung für die Beständigkeit vorgesehen.
Die in diesem Dokument beschriebenen Prüfungen erlauben keine Bestimmung von Reduktionsfaktoren. Die in diesem Dokument beschriebenen Prüfungen sind Auswahlprüfverfahren, die die Funktionsfähigkeit eines Produkts über einen bestimmten Zeitraum aufzeigen. Die Referenzfestigkeit und die Restfestigkeit der in diesem Dokument untersuchten Produkte müssen auf dieselbe Art und Weise nach EN 12226 bestimmt werden.
Die Prüfung ist auf alle hydrolyseanfälligen Geotextilien und geotextilverwandten Produkte anwendbar, besonders auf Materialien auf Polyester- und Polyamidbasis und zusätzlich auf die Garne, aus denen diese Geotextilien hergestellt sind.
Dieses Verfahren ist nicht zur Bestimmung der Beständigkeit von Geotextilien gegen Hydrolyse unter stark sauren oder alkalischen Bedingungen vorgesehen.
ANMERKUNG   Auf der Grundlage dieses Verfahrens können auch anwendungsbezogene Prüfungen zur Vorhersage der Langzeitlebensdauer oder zum Vergleich von Produkten aus unterschiedlichen Polymeren oder aus gleichen Polymeren mit unterschiedlicher Struktur entwickelt werden, wobei jedoch für Temperatur und Dauer weitere Bereiche ausgewählt werden.

Géotextiles et produits apparentés - Méthode d'essai sélective pour la détermination de la résistance à l'hydrolyse dans l'eau

Le présent document spécifie une méthode d’essai sélective permettant de déterminer la résistance des géotextiles et des produits apparentés aux géotextiles à l’hydrolyse par exposition d’éprouvettes à de l’eau à températures élevées, suivie d’une évaluation des changements de propriétés résultant de cette exposition. Le but de cet essai est d’établir un niveau minimal acceptable de durabilité.
Les essais décrits dans ce document ne permettent pas la détermination de facteurs de réduction. Les essais décrits dans ce document constituent des essais sélectifs permettant d’évaluer l’aptitude de service d’un produit pour une durée spécifique. La résistance de référence et la résistance résiduelle des produits examinés dans ce document nécessitent d’être déterminés conformément à l’EN 12226.
L’essai s’applique à tous les géotextiles et produits apparentés aux géotextiles sensibles à l’hydrolyse, notamment les matériaux à base de polyester et de polyamide et par extension aux fils dont les géotextiles sont faits.
La méthode décrite n’est pas prévue pour la détermination de la résistance des géotextiles à l’hydrolyse dans des conditions élevées d’alcalinité ou d’acidité.
NOTE   Les essais de performance destinés à prévoir la durée de vie à long terme ou à comparer les produits composés de polymères différents ou des mêmes polymères mais ayant une structure différente peuvent utiliser la même méthode mais avec une plage plus large de températures et de durées.

Geotekstilije in geotekstilijam sorodni izdelki - Presejalna preskusna metoda za ugotavljanje odpornosti proti hidrolizi v vodi

General Information

Status
Published
Public Enquiry End Date
01-Jul-2020
Publication Date
12-Sep-2021
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
09-Sep-2021
Due Date
14-Nov-2021
Completion Date
13-Sep-2021

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SLOVENSKI STANDARD
SIST EN 12447:2021
01-november-2021
Nadomešča:
SIST EN 12447:2002
Geotekstilije in geotekstilijam sorodni izdelki - Presejalna preskusna metoda za
ugotavljanje odpornosti proti hidrolizi v vodi

Geotextiles and geotextile-related products - Screening test method for determining the

resistance to hydrolysis in water

Geotextilien und geotextilverwandte Produkte - Auswahlprüfverfahren zur Bestimmung

der Hydrolysebeständigkeit in Wasser

Géotextiles et produits apparentés - Méthode d'essai sélective pour la détermination de

la résistance à l'hydrolyse dans l'eau
Ta slovenski standard je istoveten z: EN 12447:2021
ICS:
59.080.70 Geotekstilije Geotextiles
SIST EN 12447:2021 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN 12447:2021
---------------------- Page: 2 ----------------------
SIST EN 12447:2021
EN 12447
EUROPEAN STANDARD
NORME EUROPÉENNE
September 2021
EUROPÄISCHE NORM
ICS 59.080.70 Supersedes EN 12447:2001
English Version
Geotextiles and geotextile-related products - Screening
test method for determining the resistance to hydrolysis in
water

Géotextiles et produits apparentés - Méthode d'essai Geotextilien und geotextilverwandte Produkte -

sélective pour la détermination de la résistance à Auswahlprüfverfahren zur Bestimmung der

l'hydrolyse dans l'eau Hydrolysebeständigkeit in Wasser
This European Standard was approved by CEN on 18 July 2021.

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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,

Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and

United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 12447:2021 E

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN 12447:2021
EN 12447:2021 (E)
Contents Page

European foreword ...................................................................................................................................................... 3

Introduction .................................................................................................................................................................... 4

1 Scope .................................................................................................................................................................... 5

2 Normative references .................................................................................................................................... 5

3 Terms and definitions ................................................................................................................................... 5

4 Principle ............................................................................................................................................................. 5

5 Water ................................................................................................................................................................... 6

6 Safety precautions .......................................................................................................................................... 6

7 Apparatus .......................................................................................................................................................... 6

8 Specimens .......................................................................................................................................................... 6

9 Procedure .......................................................................................................................................................... 6

10 Determination of changes in properties ................................................................................................ 7

11 Test report ......................................................................................................................................................... 8

Bibliography ................................................................................................................................................................... 9

---------------------- Page: 4 ----------------------
SIST EN 12447:2021
EN 12447:2021 (E)
European foreword

This document (EN 12447:2021) has been prepared by 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 March 2022, and conflicting national standards shall

be withdrawn at the latest by March 2022.

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CEN shall not be held responsible for identifying any or all such patent rights.

This document supersedes EN 12447:2001.

In comparison with the previous edition, the following technical modifications have been made:

— test temperature has been reduced;
— the exposure of the control specimen has been extended to 6 h;
— tables with test durations have been added.

Any feedback and questions on this document should be directed to the users’ national standards body.

A complete listing of these bodies can be found on the CEN website.

According to the CEN-CENELEC Internal Regulations, the national standards organisations of the

following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,

Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,

Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of

North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the

United Kingdom.
---------------------- Page: 5 ----------------------
SIST EN 12447:2021
EN 12447:2021 (E)
Introduction

This document describes a screening test method to establish a minimum acceptance level of resistance

of geotextiles and geotextile-related products to soil moisture.

In certain polymers moisture leads to hydrolysis throughout the thickness of the fibre (internal

hydrolysis) but the rate of degradation is such that over short periods it is only measurable at elevated

temperatures, e.g. by immersion in hot water.
---------------------- Page: 6 ----------------------
SIST EN 12447:2021
EN 12447:2021 (E)
1 Scope

This document specifies a screening test method for determining the resistance of geotextiles and

geotextile-related products to hydrolysis by exposing test specimens to water at elevated temperatur

...

SLOVENSKI STANDARD
oSIST prEN 12447:2020
01-junij-2020
Geotekstilije in geotekstilijam sorodni izdelki - Presejalna preskusna metoda za
ugotavljanje odpornosti proti hidrolizi v vodi

Geotextiles and geotextile-related products - Screening test method for determining the

resistance to hydrolysis in water

Geotextilien und geotextilverwandte Produkte - Auswahlprüfverfahren zur Bestimmung

der Hydrolysebeständigkeit in Wasser

Géotextiles et produits apparentés - Méthode d'essai sélective pour la détermination de

la résistance à l'hydrolyse dans l'eau
Ta slovenski standard je istoveten z: prEN 12447
ICS:
59.080.70 Geotekstilije Geotextiles
oSIST prEN 12447:2020 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN 12447:2020
---------------------- Page: 2 ----------------------
oSIST prEN 12447:2020
DRAFT
EUROPEAN STANDARD
prEN 12447
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2020
ICS 59.080.70 Will supersede EN 12447:2001
English Version
Geotextiles and geotextile-related products - Screening
test method for determining the resistance to hydrolysis in
water

Géotextiles et produits apparentés - Méthode d'essai Geotextilien und geotextilverwandte Produkte -

sélective pour la détermination de la résistance à Auswahlprüfverfahren zur Bestimmung der

l'hydrolyse dans l'eau Hydrolysebeständigkeit in Wasser

This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee

CEN/TC 189.

If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,

Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and

United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are

aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without

notice and shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 12447:2020 E

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
oSIST prEN 12447:2020
prEN 12447:2020 (E)
Contents Page

European foreword ...................................................................................................................................................... 3

Introduction .................................................................................................................................................................... 4

1 Scope .................................................................................................................................................................... 5

2 Normative references .................................................................................................................................... 5

3 Terms and definitions ................................................................................................................................... 5

4 Principle ............................................................................................................................................................. 5

5 Water ................................................................................................................................................................... 5

6 Safety precautions .......................................................................................................................................... 6

7 Apparatus .......................................................................................................................................................... 6

8 Specimens .......................................................................................................................................................... 6

9 Procedure .......................................................................................................................................................... 6

10 Determination of changes in properties ................................................................................................ 7

11 Test report ......................................................................................................................................................... 7

Bibliography ................................................................................................................................................................... 8

---------------------- Page: 4 ----------------------
oSIST prEN 12447:2020
prEN 12447:2020 (E)
European foreword

This document (prEN 12447:2020) has been prepared by Technical Committee CEN/TC 189

“Geosynthetics”, the secretariat of which is held by NBN.
This document is currently submitted as Enquiry.
This document will supersede EN 12447:2001.

In comparison with the previous edition, the following technical modifications have been made:

— test temperature has been reduced;
— the exposure of the control specimen has been extended to 6 h;
— table with test durations has been added.
---------------------- Page: 5 ----------------------
oSIST prEN 12447:2020
prEN 12447:2020 (E)
Introduction

This document describes a screening test method to establish a minimum acceptance level of resistance

of geotextiles and geotextile-related products to soil moisture.

In certain polymers moisture leads to hydrolysis throughout the thickness of the fibre (internal

hydrolysis) but the rate of degradation is such that over short periods it is only measurable at elevated

temperatures, e.g. by immersion in hot water.
---------------------- Page: 6 ----------------------
oSIST prEN 12447:2020
prEN 12447:2020 (E)
1 Scope

This document specifies a screening test method for determining the resistance of geotextiles and

geotextile-re
...

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