Geosynthetics - Screening test method for determining chemical resistance for landfill applications

This European Standard describes a test method to determine the chemical resistance of geosynthetics to liquid municipal, agricultural and industrial wastes, using a laboratory immersion procedure.
The procedure includes three chemical compounds chosen to initiate known types of chemical degradation, and a synthetic leachate representative of a landfill containing domestic waste.  The procedure can also be applied using a site-specific leachate.  These options are denoted by methods A to E:  
- method A: hydrolysis under acidic conditions;
- method B: hydrolysis under basic conditions;
- method C: solvation/swelling;
- method D: synthetic leachate;
- method E: any site-specific leachate;
The method of evaluation (see clause 9) differs according to whether the material is a geotextile, a polymeric or bituminous geosynthetic barrier, or a geosynthetic clay barrier. In the case of geosynthetic clay barriers only the polymeric component will be tested.

Geokunststoffe - Auswahlprüfverfahren zur Bestimmung der chemischen Beständigkeit bei der Anwendung in Deponien

Diese Europäische Norm beschreibt ein Laboratoriumseintauchverfahren zur Prüfung von Geokunststoffen  hinsichtlich ihrer chemischen Beständigkeit gegenüber flüssigen kommunalen, landwirtschaftlichen und industriellen Abfallstoffen.
Das Verfahren umfasst drei Kombinationen von chemischen Verbindungen, die ausgewählt wurden, um bekannte Arten chemischer Zersetzungsvorgänge auszulösen, und eine Art von künstlichem Deponiesicker-wasser, das als repräsentativ für eine Deponie angesehen wird, die Haushaltsabfall enthält. Das Verfahren kann auch mit Sickerwasser einer bestimmten Deponie angewendet werden. Diese Auswahlmöglichkeiten sind durch die Verfahren A bis E bezeichnet:
-   Verfahren A: Hydrolyse unter sauren Bedingungen;
-   Verfahren B: Hydrolyse unter basischen Bedingungen;
-   Verfahren C: Lösungsvorgänge/Quellen;
-   Verfahren D: künstliches Deponiesickerwasser;
-   Verfahren E: alle Arten von Deponiesickerwasser.
Die zur Bewertung angewendeten Verfahren (siehe Abschnitt 9) sind für Geotextilien, geosynthetische Kunststoffdichtungsbahnen oder geosynthetische Bitumendichtungsbahnen unterschiedlich. Bei einer Tondichtungsbahn wird nur der Kunststoffanteil geprüft.
- Verfahren E: alle Arten von Deponiesickerwasser einer Deponie.
Das zur Bewertung angewendete Verfahren ist für Geotextilien oder geosynthetische Dichtungsbahnen unterschiedlich. Die Norm erhebt nicht den Anspruch, alle mit ihrer Anwendung verbundenen Sicherheitsprobleme zu behandeln, sofern solche gegeben sind. Es liegt in der Verantwortung des Anwenders dieser Norm, geeignete Vorsichts-maßnahmen für den Arbeits- und Gesundheitsschutz zu treffen und die Anwendbarkeit einschränkender Vorschriften vor der Anwendung zu bestimmen.

Géosynthétiques - Méthode d'essai sélective permettant de déterminer la résistance chimique pour l'utilisation dans les centres de stockage de déchets

Geosintetika - Presejalna preskusna metoda za ugotavljanje kemične odpornosti zemljišč za potrebe deponij

General Information

Status
Published
Publication Date
18-May-2004
Withdrawal Date
29-Nov-2004
ICS
59.080.70 - Geotextiles
Technical Committee
CEN/TC 189 - Geotextiles and geotextile-related products
Drafting Committee
CEN/TC 189/WG 5 - Durability
Current Stage
9093 - Decision to confirm - Review Enquiry
Start Date
25-Jan-2022
Completion Date
14-Apr-2025
Ref Project
SIST EN 14414:2004 - Geosynthetics - Screening test method for determining chemical resistance for landfill applications

Overview

EN 14414:2004 (CEN) specifies a laboratory screening test method to determine the chemical resistance of geosynthetics for landfill applications. The procedure assesses how geotextiles, polymeric or bituminous geosynthetic barriers, and geosynthetic clay barriers (GCLs - testing only the polymeric component) react to contact with liquid municipal, agricultural and industrial wastes. The test uses controlled immersion in selected chemical agents or leachates to simulate common degradation mechanisms encountered in landfills.

Key Topics

  • Test purpose: Screening for chemical degradation of geosynthetics used in landfill liners, caps and containment systems.
  • Immersion approach: Laboratory immersion in specific chemical compounds or leachates representative of landfill conditions.
  • Five test options (methods A–E):
    • Method A: Hydrolysis under acidic conditions
    • Method B: Hydrolysis under basic (alkaline) conditions
    • Method C: Solvation/swelling (solvent-type effect)
    • Method D: Synthetic leachate representative of domestic waste landfills
    • Method E: Any site-specific leachate (user-provided)
  • Evaluation differences: Clause 9 defines evaluation procedures that vary by material type - geotextiles, polymeric or bituminous barriers, and geosynthetic clay barriers (only polymeric components evaluated for GCLs).
  • Scope limits: This is a screening test method - intended to identify potential chemical sensitivity rather than provide exhaustive in-field performance predictions.

Applications

EN 14414:2004 is practical for professionals and organizations involved in landfill design, materials selection, testing and regulation:

  • Geotechnical and landfill engineers - to screen candidate geosynthetics for chemical compatibility with expected leachates.
  • Manufacturers and product developers - for comparative product assessment and early-stage quality control.
  • Testing laboratories - to perform standardized immersion tests for specifications and certification.
  • Regulators and owners/operators - to inform procurement specifications, compliance checks and risk assessments.
  • Consultants - to recommend appropriate liner systems or site-specific testing (method E) based on waste streams.

Practical uses include material selection for base liners, cap systems, containment barriers, performance-based specifications, and preliminary compatibility assessments with municipal, industrial or agricultural waste leachates.

Related Standards (if applicable)

  • EN 14414 complements other European standards for geosynthetics (geotextiles, geomembranes, GCLs) and laboratory test methods addressing physical, mechanical and hydraulic properties. Use EN 14414 together with product-specific standards and site-specific chemical characterization protocols for comprehensive design and specification.

Frequently Asked Questions

EN 14414:2004 is a standard published by the European Committee for Standardization (CEN). Its full title is "Geosynthetics - Screening test method for determining chemical resistance for landfill applications". This standard covers: This European Standard describes a test method to determine the chemical resistance of geosynthetics to liquid municipal, agricultural and industrial wastes, using a laboratory immersion procedure. The procedure includes three chemical compounds chosen to initiate known types of chemical degradation, and a synthetic leachate representative of a landfill containing domestic waste. The procedure can also be applied using a site-specific leachate. These options are denoted by methods A to E: - method A: hydrolysis under acidic conditions; - method B: hydrolysis under basic conditions; - method C: solvation/swelling; - method D: synthetic leachate; - method E: any site-specific leachate; The method of evaluation (see clause 9) differs according to whether the material is a geotextile, a polymeric or bituminous geosynthetic barrier, or a geosynthetic clay barrier. In the case of geosynthetic clay barriers only the polymeric component will be tested.

This European Standard describes a test method to determine the chemical resistance of geosynthetics to liquid municipal, agricultural and industrial wastes, using a laboratory immersion procedure. The procedure includes three chemical compounds chosen to initiate known types of chemical degradation, and a synthetic leachate representative of a landfill containing domestic waste. The procedure can also be applied using a site-specific leachate. These options are denoted by methods A to E: - method A: hydrolysis under acidic conditions; - method B: hydrolysis under basic conditions; - method C: solvation/swelling; - method D: synthetic leachate; - method E: any site-specific leachate; The method of evaluation (see clause 9) differs according to whether the material is a geotextile, a polymeric or bituminous geosynthetic barrier, or a geosynthetic clay barrier. In the case of geosynthetic clay barriers only the polymeric component will be tested.

EN 14414:2004 is classified under the following ICS (International Classification for Standards) categories: 59.080.70 - Geotextiles. The ICS classification helps identify the subject area and facilitates finding related standards.

EN 14414:2004 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.

Standards Content (Sample)


2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Geokunststoffe - Auswahlprüfverfahren zur Bestimmung der chemischen Beständigkeit bei der Anwendung in DeponienGéosynthétiques - Méthode d'essai sélective permettant de déterminer la résistance chimique pour l'utilisation dans les centres de stockage de déchetsGeosynthetics - Screening test method for determining chemical resistance for landfill applications59.080.70GeotekstilijeGeotextiles13.03
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