EN 12873-4:2021
(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 document describes a test method for laboratory evaluation of possible adverse effects of water treatment membrane elements and modules 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 can 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
Dieses Dokument beschreibt ein Prüfverfahren zur Ermittlung möglicher ungünstiger Effekte von Membran¬elementen und modulen zur Wasserbehandlung auf die Trinkwasserqualität.
Grundsätzlich ist dieses Dokument auf Module zur Mikrofiltration, Ultrafiltration, Nanofiltration, Umkehrosmose und Elektrodialyse anzuwenden, deren Einsatzbereich die Wasserbehandlung in öffentlichen Wasserwerken und in Trink¬wasser-Installationen ist.
ANMERKUNG Die Geräte können sich in Gestaltung und Bedienung wesentlich unterscheiden und daher können Modifikationen des Prüfverfahrens erforderlich sein.
Eine Bewertung der Wirksamkeit von Membranfiltern zur Entfernung von Verunreinigungen im behandelten Wasser wird nicht vorgenommen.
Influence des matériaux sur l’eau destinée à la consommation humaine - Influence due à la migration - Partie 4: Méthode d’essai des membranes des systèmes de traitement d’eau
Le présent document décrit une méthode d’essai permettant d’évaluer en laboratoire les effets défavorables éventuels causés par les éléments et modules membranaires des systèmes de traitement d’eau sur la qualité de l’eau potable.
En principe, il 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 Étant donné que ces dispositifs peuvent être de conception et de fonctionnement très divers, 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
Ta evropski standard opisuje preskusno metodo za laboratorijsko vrednotenje morebitnih škodljivih učinkov membran za pripravo vode na kakovost pitne vode.
Načeloma se uporablja za module za mikrofiltracijo, ultrafiltracijo, nanofiltracijo, reverzno osmozo in elektrodializo za uporabo pri čiščenju sistemov za javno oskrbo z vodo oziroma vode v stavbah.
OPOMBA: Takšne naprave se lahko zelo razlikujejo po zasnovi in delovanju, zato bo morda potrebnih nekaj prilagoditev postopkov.
Vrednotenje učinkovitosti membranskega filtra pri odstranjevanju nečistoč iz pripravljene vode ni vključeno.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-januar-2022
Nadomešča:
SIST EN 12873-4:2006
Vpliv materiala na pitno vodo - Vpliv migracije - 4. del: Metoda preskušanja
membran za pripravo vode
Influence of materials on water intended for human consumption - Influence due to
migration - Part 4: Test method for water treatment membranes
Einfluss von Materialien auf Wasser für den menschlichen Gebrauch - Einfluss infolge
der Migration - Teil 4: Prüfverfahren für Membranen für die Wasserbehandlung
Influence des matériaux sur l’eau destinée à la consommation humaine - Influence due à
la migration - Partie 4: Méthode d’essai des membranes des systèmes de traitement
d’eau
Ta slovenski standard je istoveten z: EN 12873-4:2021
ICS:
13.060.20 Pitna voda Drinking water
67.250 Materiali in predmeti v stiku z Materials and articles in
živili contact with foodstuffs
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 12873-4
EUROPEAN STANDARD
NORME EUROPÉENNE
November 2021
EUROPÄISCHE NORM
ICS 13.060.20; 67.250 Supersedes EN 12873-4:2006
English Version
Influence of materials on water intended for human
consumption - Influence due to migration - Part 4: Test
method for water treatment membranes
Influence des matériaux sur l'eau destinée à la Einfluss von Materialien auf Wasser für den
consommation humaine - Influence due à la migration - menschlichen Gebrauch - Einfluss infolge der Migration
Partie 4: Méthode d'essai des membranes des systèmes - Teil 4: Prüfverfahren für Membranen für die
de traitement d'eau Wasserbehandlung
This European Standard was approved by CEN on 10 October 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 12873-4:2021 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Test method . 7
4.1 Principle . 7
4.2 Reagents and apparatus . 7
4.2.1 General . 7
4.2.2 Test water . 8
4.2.3 Flushing water . 8
4.2.4 Cleaning and/or disinfection agent . 8
4.2.5 Test rig . 8
4.3 Test samples . 9
4.3.1 General requirements . 9
4.3.2 Sample storage . 9
4.4 Procedure . 9
4.4.1 General . 9
4.4.2 Test temperature . 9
4.4.3 Procedural blanks (R0 and T0) . 9
4.4.4 Start-up procedure . 10
4.4.5 Migration test . 10
4.4.6 Cleaning and disinfection . 12
5 Analysis . 13
6 Expression of results . 13
6.1 Concentrations in the analytical samples . 13
6.2 Daily migration rates . 13
6.2.1 Calculation based on concentrations in analytical samples from one-pass sampling, T1, T2,
T3 and DT1 . 13
6.2.2 Calculation based on concentrations in migration waters after re-circulation, R1, R2 and DR1 . 13
7 Test report . 14
Annex A (informative) Diagram of the test procedure . 15
Annex B (informative) Schematic diagram of an example test rig . 16
Bibliography . 17
European foreword
This document (EN 12873‑4:2021) has been prepared by Technical Committee CEN/TC 164 “Water
supply”, the secretariat of which is held by AFNOR.
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 2022, and conflicting national standards shall be withdrawn
at the latest by May 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 12873‑4:2006.
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 document 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 factory-made products made from or incorporating organic or glassy (porcelain/
vitreous enamel) materials;
— 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.
The significant technical difference between this edition and EN 12873‑4:2006 are as follows:
— New definitions and editorial changes to existing definitions.
— Change to temperature of operation if not provided by the manufacturer.
— General editorial, structural changes and clarification throughout the document.
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.
Introduction
In respect of potential adverse effects on the quality of water intended for human consumption caused by
the materials, it is called to mind that, while awaiting the adoption of verifiable European acceptance
criteria, the relevant national regulations remain in force.
1 Scope
This document describes a test method for laboratory evaluation of possible adverse effects of water
treatment membrane elements and modules 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
can 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 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 ISO 3696:1995, Water for analytical laboratory use - Specification and test methods (ISO 3696:1987)
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 https://www.electropedia.org/
— ISO Online browsing platform: available at https://www.iso.org/obp
3.1
analytical sample
portion of the migration water collected for the determination of specified water quality parameters
3.2
cell pair
basic unit of electrodialysis systems consisting of a cation transfer membrane, a dilute flow (product)
spacer, an anion transfer membrane and a concentrate (waste) spacer
3.3
cleaning and/or disinfection agent
chemical solution passed through the membrane element/module either in response to changes in the
performance of the membrane or at fixed times or volumes to remove solids or biofilm build up from the
membrane to improve efficiency
3.4
concentrate
permeate and reject water returned to the reservoir of test water to be pumped back through the
membrane element/module resulting in a concentration of migrating substances from the membrane
element/module
3.5
dead volume
volume of water contained in a membrane element/module (but not including pumps, valves and other
ancillaries connected to the membrane element/module) during normal use
3.6
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 wastewater stream
3.7
feed water
inlet water for the test rig
Note 1 to entry: See di
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.