EN 12873-4:2006
(Main)Influence of materials on water intended for human consumption - Influence due to migration - Part 4: Test method for water treatment membranes
Influence of materials on water intended for human consumption - Influence due to migration - Part 4: Test method for water treatment membranes
This European standard describes a test method for laboratory evaluation of possible adverse effects of water treatment membranes on drinking water quality.
In principle it is applicable to microfiltration, ultrafiltration, nanofiltration, reverse osmosis and electrodialysis modules for use in the treatment of public water supplies and of water inside buildings.
NOTE Such devices can vary considerably in design and operation and hence some modification of the procedures may be required.
Evaluation of the efficiency of the membrane filter in removing contaminants from the treated water is not included.
Einfluss von Materialien auf Wasser für den menschlichen Gebrauch - Einfluss infolge der Migration - Teil 4: Prüfverfahren für Membranen für die Wasserbehandlung
Diese Europäische Norm beschreibt ein Prüfverfahren zur Ermittlung möglicher ungünstiger Effekte von
Membranen zur Wasserbehandlung auf die Trinkwasserqualität.
Grundsätzlich ist sie anwendbar für Module der Mikrofiltration, Ultrafiltration, Nanofiltration, Umkehrosmose
und Elektrodialyse, deren Einsatzbereich die Wasserbehandlung in öffentlichen Wasserwerken und in
Trinkwasser-Installationen ist.
ANMERKUNG Die Geräte können sich in Gestaltung und Bedienung wesentlich unterscheiden und daher können
Modifikationen des Prüfverfahrens erforderlich werden.
Eine Bewertung der Wirksamkeit von Membranfiltern zur Entfernung von Verunreinigungen im behandelten
Wasser wird nicht vorgenommen.
Influence sur l'eau des matériaux destinés à entrer en contact avec l'eau destinée à la consommation humaine - Influence de la migration - Partie 4 : Méthode d'essai des membranes des systèmes de traitement d'eau
La présente Norme Européenne décrit une méthode d’essai permettant d’évaluer en laboratoire les effets
défavorables éventuels causés par les membranes des systèmes de traitement d’eau sur la qualité de l’eau
potable.
En principe, elle est applicable aux modules de microfiltration, d’ultrafiltration, de nanofiltration, d’osmose
inverse et d’électrodialyse destinés à être utilisés dans le traitement des eaux pour usages publics et de l’eau
dans les bâtiments.
NOTE Etant donné que la conception et le fonctionnement de ces dispositifs ne sont pas toujours semblables, il peut
se révéler nécessaire d’apporter certaines modifications aux modes opératoires.
L’évaluation de l’aptitude de la membrane filtrante à éliminer les contaminants de l’eau traitée n’est pas
abordée.
Vpliv materiala na pitno vodo – Vpliv migracije – 4. del: Metoda preskušanja membran za pripravo vode
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Influence of materials on water intended for human consumption - Influence due to migration - Part 4: Test method for water treatment membranesVpliv materiala na pitno vodo – Vpliv migracije – 4. del: Metoda preskušanja membran za pripravo vodeInfluence sur l'eau des matériaux destinés a entrer en contact avec l'eau destinée a la consommation humaine - Influence de la migration - Partie 4 : Méthode d'essai des membranes des systemes de traitement d'eauEinfluss von Materialien auf Wasser für den menschlichen Gebrauch - Einfluss infolge der Migration - Teil 4: Prüfverfahren für Membranen für die WasserbehandlungTa slovenski standard je istoveten z:EN 12873-4:2006SIST EN 12873-4:2006en67.25013.060.20ICS:SLOVENSKI
STANDARDSIST EN 12873-4:200601-julij-2006
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 12873-4March 2006ICS 13.060.20; 67.250 English VersionInfluence of materials on water intended for human consumption- Influence due to migration - Part 4: Test method for watertreatment membranesInfluence des matériaux sur l'eau destinée à laconsommation humaine - Influence due à la migration -Partie 4 : Méthode d'essai des membranes des systèmesde traitement d'eauEinfluss von Materialien auf Wasser für den menschlichenGebrauch - Einfluss infolge der Migration - Teil 4:Prüfverfahren für Membranen für die WasserbehandlungThis European Standard was approved by CEN on 3 February 2006.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2006 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 12873-4:2006: E
Diagram of the test procedure.15 Annex B (informative)
Schematic diagram of an example test rig.16 Bibliography.17
This standard is one of a series of standards on test methods which support the appropriate standards. It has been drawn up with the objective to describe a test method to determine the migration of substances from water treatment membranes.
Annex A, which is informative, provides a flow diagram of the steps in the test procedure. Annex B, which is informative, describes a test rig. This standard is the fourth in a series of standards dealing with the influence of migration from materials on water intended for human consumption, including: — Part 1 Test method for non-metallic and non-cementitious factory made products; — Part 2 Test method for non-metallic and non-cementitious site-applied materials; — Part 3 Test method for ion exchange and adsorbent resins; — Part 4 Test method for water treatment membranes. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
NOTE Such devices can vary considerably in design and operation and hence some modification of the procedures may be required. Evaluation of the efficiency of the membrane filter in removing contaminants from the treated water is not included. 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. EN ISO 3696, Water for analytical laboratory use - Specification and test methods (ISO 3696:1987) 3 Terms and definitions For the purposes of this European Standard, the following terms and definitions apply. 3.1 analytical sample portion of the extract collected for the determination of specified water quality parameters 3.2 cell pair basic unit of ED systems consisting of a cation transfer membrane, a dilute flow (product) spacer, an anion transfer membrane and a concentrate (waste) spacer 3.3 electrodialysis process in which ionic species in a feed water are transferred by means of an electrical driving force via a membrane, which is either cation or anion specific, to a waste water stream 3.4 feed water inlet water for the test rig 3.5 leaching test/migration test determination of the effects on parameters of water quality following contact with the test sample under specified conditions 3.6 leaching/migration process of transferring constituents from a material of the test sample into test water carried out under specified conditions
In case of membrane water treatment systems the product is a membrane module. 3.11 product water treated water from the water treatment unit 3.12 reject water tangential water that does not flow through the membrane 3.13 test rig equipment, which is not part of the test sample, used to perform the test and control test conditions 3.14 test sample product, or part of a product, submitted for testing for suitability for use in contact with water intended for human consumption 3.15 test water water used in contact with the test sample for evaluation of migration behaviour 4 Symbols and abbreviations ED Electrodialysis 5 Test method 5.1 Principle Water of specified quality is run through a membrane module under specified operating conditions representing as much as possible the actual conditions of use. The procedure comprises several steps including flushing, operation with and without recycling and cleaning and/or disinfection, the latter depending on the manufacturers recommendations. The purpose of the recycling phase is to concentrate the potential contaminants leaching from the test sample. Samples of the concentrates and the single-pass extracts are taken for analysis.
Purification of water, such as tapwater, by a sequence consisting of carbon filtration, reverse osmosis or distillation and followed by deionization usually produces satisfactory test water. 5.2.3 Flushing water The flushing water should be of a similar quality to the test water (5.2.2). Good quality tap water may be used provi
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