FprEN 12225
(Main)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 de détermination de la résistance microbiologique par un test d'enfouissement dans le sol
Geosintetika - Metoda ugotavljanja mikrobiološke odpornosti s preskusom zakopavanja v zemljo
General Information
RELATIONS
Standards Content (sample)
SLOVENSKI STANDARD
oSIST prEN 12225:2019
01-oktober-2019
Geosintetika - Metoda ugotavljanja mikrobiološke odpornosti s preskusom
zakopavanja v zemljo
Geosynthetics - Method for determining the microbiological resistance by a soil burial
testGeokunststoffe - Prüfverfahren zur Bestimmung der mikrobiologischen Beständigkeit
durch einen ErdeingrabungsversuchGéosynthetics - Méthode pour la détermination de la résistance microbiologique par un
essai d'enfouissementTa slovenski standard je istoveten z: prEN 12225
ICS:
07.100.99 Drugi standardi v zvezi z Other standards related to
mikrobiologijo microbiology
59.080.70 Geotekstilije Geotextiles
oSIST prEN 12225:2019 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 12225:2019
DRAFT
EUROPEAN STANDARD
prEN 12225
NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2019
ICS Will supersede EN 12225:2000
English Version
Geosynthetics - Method for determining the
microbiological resistance by a soil burial test
Géosynthetics - Méthode pour la détermination de la Geokunststoffe - Prüfverfahren zur Bestimmung der
résistance microbiologique par un essai mikrobiologischen Beständigkeit durch einen
d'enfouissement ErdeingrabungsversuchThis 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
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 12225:2019 E
worldwide for CEN national Members.---------------------- Page: 3 ----------------------
oSIST prEN 12225:2019
prEN 12225:2019 (E)
Contents
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 tests ................................................................................................................................................ 7
9 Test report ......................................................................................................................................................... 8
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prEN 12225:2019 (E)
European foreword
This document (prEN 12225:2019) has been prepared by Technical Committee CEN/TC 189
“Geosynthetics”, the secretariat of which is held by NBN.This document is currently submitted to the CEN Enquiry.
This document will supersede EN 12225:2000.
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oSIST prEN 12225:2019
prEN 12225:2019 (E)
1 Scope
This document specifies a method for the determination of the microbiological resistance of
geosynthetics 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 should be performed.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 Electropedia: available at http://www.electropedia.org/— ISO Online browsing platform: available at http://www.iso.org/obp
3.1
microbiological resistance
resistance of a geotextile or geotextile-related product to attack by bacteria or fungi
Note 1 to entry...
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