EN 12225:2020
(Main)Geosynthetics - Method for determining the microbiological resistance by a soil burial test
Geosynthetics - Method for determining the microbiological resistance by a soil burial test
This document specifies a method for the determination of the microbiological resistance of geosynthetics including those of natural fibres and biodegradable polymers by a soil burial test.
NOTE Experience and exhumation of geosynthetics which had performed successfully, in some cases for more than two decades, indicate that geosynthetics made out of synthetic materials are generally resistant against microbial initiated decay. It can therefore be expected that most of these products commercially available at the present time will pass the soil burial test successfully and it is probably not necessary to submit them all to this test independent of their function. However, if the requirements for appropriate functioning of the geosynthetics demand proof of microbiological resistance or if they are manufactured from newly developed polymers whose resistance is in any doubt, the soil burial test can provide additional information.
Geokunststoffe - Prüfverfahren zur Bestimmung der mikrobiologischen Beständigkeit durch einen Erdeingrabungsversuch
Dieses Dokument legt ein Verfahren zur Bestimmung der mikrobiologischen Beständigkeit von Geokunststoffen, einschließlich denen, die aus Naturfasern und biologisch abbaubaren Polymeren bestehen, durch einen Erdeingrabungsversuch fest.
ANMERKUNG Erfahrungen und die Ausgrabung von Geokunststoffen, die sich in manchen Fällen über mehr als zwei Jahrzehnte als beständig erwiesen haben, zeigen, dass Geokunststoffe aus synthetischen Materialien im Allgemeinen gegenüber mikrobiologisch ausgelöstem Zerfall resistent sind. Es kann deshalb erwartet werden, dass die meisten der gegenwärtigen handelsüblichen Produkte den Erdeingrabungsversuch erfolgreich bestehen werden und dass es wahrscheinlich nicht notwendig ist, sie alle unabhängig von ihrer Funktion dieser Prüfung zu unterziehen. Wenn jedoch die Anforderungen an ausreichende Funktion der Geokunststoffe den Nachweis der mikrobiologischen Beständigkeit erfordern oder wenn sie aus neuentwickelten Polymeren hergestellt sind, deren Beständigkeit anzuzweifeln ist, kann der Erdeingrabungsversuch zusätzliche Informationen liefern.
Géosynthétiques - Méthode pour la détermination de la résistance microbiologique par un essai d'enfouissement dans le sol
Ce document présente une méthode de détermination de la résistance microbiologique des
géosynthétiques incluant ceux constitués de fibres naturelles et de polymères biodégradables par un
essai d'enfouissement dans le sol.
NOTE L'expérience sur des géosynthétiques extraits après un enfouissement, pouvant dans certains cas
dépasser 20 ans, a montré que les produits composés de matières plastiques sont en général résistants à une
dégradation microbienne amorcée. On peut par conséquent s'attendre à ce que la plupart des produits actuellement
disponibles sur le marché obtiennent un résultat positif à l'essai d'enfouissement ; il ne sera probablement pas
nécessaire de les soumettre tous, indépendamment de leur fonction à laquelle ils sont destinés, à cet essai.
Cependant, si les exigences relatives à un emploi adéquat des produits concernés nécessitent de démontrer leur
résistance microbiologique, ou, s'ils ont été fabriqués à partir de polymères récemment mis au point pour lesquels
la résistance microbiologique n'a pas été établie, il convient d'effectuer l'essai d'enfouissement.
Geosintetika - Metoda ugotavljanja mikrobiološke odpornosti s preskusom zakopavanja v zemljo
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-januar-2021
Nadomešča:
SIST EN 12225:2001
Geosintetika - Metoda ugotavljanja mikrobiološke odpornosti s preskusom
zakopavanja v zemljo
Geosynthetics - Method for determining the microbiological resistance by a soil burial
test
Geokunststoffe - Prüfverfahren zur Bestimmung der mikrobiologischen Beständigkeit
durch einen Erdeingrabungsversuch
Géosynthetics - Méthode pour la détermination de la résistance microbiologique par un
essai d'enfouissement
Ta slovenski standard je istoveten z: EN 12225:2020
ICS:
07.100.99 Drugi standardi v zvezi z Other standards related to
mikrobiologijo microbiology
59.080.70 Geotekstilije Geotextiles
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 12225
EUROPEAN STANDARD
NORME EUROPÉENNE
November 2020
EUROPÄISCHE NORM
ICS 59.080.70; 07.100.99 Supersedes EN 12225:2000
English Version
Geosynthetics - Method for determining the
microbiological resistance by a soil burial test
Géosynthétiques - Méthode de détermination de la Geokunststoffe - Prüfverfahren zur Bestimmung der
résistance microbiologique par un test mikrobiologischen Beständigkeit durch einen
d'enfouissement dans le sol Erdeingrabungsversuch
This European Standard was approved by CEN on 11 October 2020.
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
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 12225:2020 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Principle . 5
5 Reagents and apparatus . 5
5.1 Test soil . 5
5.2 Cotton fabric . 6
5.3 Microbicides . 6
5.4 Container . 6
6 Specimens . 6
7 Test climate . 6
8 Procedure. 6
8.1 Biological activity . 6
8.2 Testing of specimens . 7
8.2.1 Active test . 7
8.2.2 Incubation . 7
8.2.3 Cleaning of specimens . 7
8.2.4 Evaluation of tests . 7
9 Test report . 8
European foreword
This document (EN 12225:2020) 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 May 2021, and conflicting national standards shall be
withdrawn at the latest by May 2021.
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 12225:2000.
Compared with EN 12225:2000 the following modifications have been made:
— revision of the entire document and adaptation to the current rules of structuring and drafting;
— revision of the normative references in the entire document and Clause 2;
— references to the terminological databases of ISO and IEC included in Clause 3;
— the bibliography has been deleted.
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.
1 Scope
This document specifies a method for the determination of the microbiological resistance of
geosynthetics including those of natural fibres and biodegradable polymers by a soil burial test.
NOTE Experience and exhumation of geosynthetics which had performed successfully, in some cases for
more than two decades, indicate that geosynthetics made out of synthetic materials are generally resistant against
microbial initiated decay. It can therefore be expected that most of these products commercially available at the
present time will pass the soil burial test successfully and it is probably not necessary to submit them all to this
test independent of their function. However, if the requirements for appropriate functioning of the geosynthetics
demand proof of microbiological resistance or if they are manufactured from newly developed polymers whose
resistance is in any doubt, the soil burial test can provide additional information.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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 12226, Geosynthetics — General tests for evaluation following durability testing
EN ISO 291, Plastics — Standard atmospheres for conditioning and testing (ISO 291)
EN ISO 11721-1:2001, Textiles — Determination of the resistance of cellulose-containing textiles to micro-
organisms — Soil burial test — Part 1: Assessment of rot-retardant finishing (ISO 11721-1:2001)
EN ISO 13934-1, Textiles — Tensile properties of fabrics — Part 1: Determination of maximum force and
elongation at maximum force using the strip method (ISO 13934-1)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Elec
...
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