SIST EN 12873-3:2019
(Main)Influence of materials on water intended for human consumption - Influence due to migration - Part 3: Test method for ion exchange and adsorbent resins
Influence of materials on water intended for human consumption - Influence due to migration - Part 3: Test method for ion exchange and adsorbent resins
This European Standard specifies a procedure to determine the migration of substances from ion exchange, adsorbent or hybrid resin materials for use in contact with water intended for human consumption.
Resins comprise synthetic organic macromolecular materials.
This standard is applicable to resins of the following types:
- ion exchange resins: used to modify the composition of water (e.g. softening by removal of calcium ions). They can be in either an anionic or cationic state;
- adsorbent resins: used to lower the concentration of undesirable substances (usually organic pollutants) from water. They are used in a neutral state;
- hybrid adsorbers: Organic polymer based ion exchange resin or adsorbent resin with incorporated inorganic (e.g. iron hydroxide) or second organic phase. Used to lower the concentration of undesirable substances (specific inorganic or organic pollutants) from water. They can be in either an anionic, cationic or neutral state.
Einfluss von Materialien auf Wasser für den menschlichen Gebrauch - Einfluss infolge der Migration - Teil 3: Prüfverfahren für Ionenaustauscher und Adsorberharze
Diese Europäische Norm legt ein Verfahren fest, mit dem die Migration von Substanzen aus Ionenaustauschern, Adsorberharzen oder Hybridharzen, die für den Einsatz in Kontakt mit Trinkwasser bestimmt sind, ermittelt wird.
Harze enthalten synthetische organische makromolekulare Substanzen.
Diese Norm gilt für Harze der folgenden Typen:
- Ionenaustauscher-Harze: sie werden verwendet, um die Wasserbeschaffenheit zu verändern (z. B. Entfernung von Calciumionen zur Enthärtung). Sie können sowohl Anionenaustauscher- als auch Kationenaustauscher-Harze sein;
- Adsorberharze: sie werden eingesetzt, um die Konzentration von unerwünschten Substanzen (normalerweise organische Schadstoffe) im Wasser zu verringern. Sie werden in neutralem Zustand eingesetzt;
- Hybridadsorber: hierbei handelt es sich um organisches polymerbasiertes Ionenaustauscher-Harz oder Adsorberharz mit eingeschlossener anorganischer (z. B. Eisenhydroxid) oder zweiter organischer Phase. Sie werden eingesetzt, um die Konzentration von unerwünschten Substanzen (bestimmten anorganischen oder organischen Schadstoffen) im Wasser zu verringern. Sie können sowohl Anionenaustauscher-Harze als auch Kationenaustauscher-Harze oder neutral sein.
Influence des matériaux en contact sur l'eau destinée à la consommation humaine - Influence due à la migration - Partie 3 : Méthode d'essai des résines adsorbantes et échangeuses d'ions
La présente Norme européenne spécifie un mode opératoire permettant de déterminer la migration de substances à partir de matériaux provenant des résines échangeuses d’ions, adsorbantes ou hybrides, utilisées en contact avec l’eau destinée à la consommation humaine.
Ces résines comprennent des matériaux macromoléculaires organiques synthétiques.
La présente norme s’applique aux résines des types suivants :
- résines échangeuses d’ions : utilisées pour modifier la composition de l’eau (par exemple, adoucissement par élimination des ions calcium). Elles peuvent être soit anioniques, soit cationiques ;
- résines adsorbantes : utilisées pour abaisser la concentration de l’eau en substances indésirables (généralement des polluants organiques). Elles sont utilisées à l’état neutre ;
- adsorbeurs hybrides : résine échangeuse d’ions à base de polymère organique ou résine adsorbante avec incorporation d’une phase inorganique (par exemple, hydroxyde de fer) ou d’une seconde phase organique. Utilisés pour abaisser la concentration de l’eau en substances indésirables (polluants organiques ou inorganiques spécifiques). Ils peuvent être anioniques, cationiques ou neutres.
Vpliv materiala na pitno vodo - Vpliv migracije - 3. del: Preskusna metoda za ionsko izmenjavo in vpojne smole
Ta evropski standard določa postopek za ugotavljanje migracije snovi iz materiala iz smole za ionsko izmenjavo ali materiala iz vpojne ali hibridne smole, ki je pri uporabi v stiku s pitno vodo.
Smole zajemajo sintetični organski makromolekularni material.
Ta standard se uporablja za naslednje vrste smol:
– smole za ionsko izmenjavo: uporabljajo se za spreminjanje sestave vode (npr. mehčanje z odstranitvijo kalcijevih ionov). Lahko so v anionskem ali kationskem stanju;
– vpojne smole: uporabljajo se za znižanje koncentracije neželenih snovi (običajno organskih onesnaževal) v vodi. Uporabljajo se v nevtralnem stanju;
– hibridni adsorberji: organska polimerna smola za ionsko izmenjavo ali vpojna smola z vgrajeno anorgansko (npr. železov hidroksid) ali drugo organsko fazo. Uporabljajo se za znižanje koncentracije neželenih snovi (posebnih anorganskih ali organskih onesnaževal) v vodi. Lahko so v anionskem, kationskem ali nevtralnem stanju.
General Information
RELATIONS
Standards Content (sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Vpliv materiala na pitno vodo - Vpliv migracije - 3. del: Preskusna metoda za ionsko izmenjavo in vpojne smoleEinfluss von Materialien auf Wasser für den menschlichen Gebrauch - Einfluss infolge der Migration - Teil 3: Prüfverfahren für Ionenaustauscher und AdsorberharzeInfluence des matériaux en contact sur l'eau destinée à la consommation humaine - Influence due à la migration - Partie 3 : Méthode d'essai des résines adsorbantes et échangeuses d'ionsInfluence of materials on water intended for human consumption - Influence due to migration - Part 3: Test method for ion exchange and adsorbent resins67.250Materiali in predmeti v stiku z živiliMaterials and articles in contact with foodstuffs13.060.20Pitna vodaDrinking waterICS:Ta slovenski standard je istoveten z:EN 12873-3:2019SIST EN 12873-3:2019en,fr,de01-april-2019SIST EN 12873-3:2019SLOVENSKI
STANDARDSIST EN 12873-3:20061DGRPHãþDSIST EN 12873-3:2019
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 12873-3
February
t r s { ICS
s uä r x rä t râ
x yä t w r Supersedes EN
s t z y uæ uã t r r xEnglish Version
Influence of materials on water intended for human consumption æ Influence due to migration æ Part
uã Test method for ion exchange and adsorbent resins Influence des matßriaux en contact sur l 5eau destinße à la consommation humaine æ Influence due à la migration æ Partie
uã Mßthode d 5essai des rßsines adsorbantes et ßchangeuses d 5ionsEinfluss von Materialien auf Trinkwasser æ Einfluß infolge der Migration æ Teil
uã Prüfverfahren für Ionen und Adsorberharze This European Standard was approved by CEN on
t x Novembert r s zä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:Rue de la Science 23,
B-1040 Brussels
t r s { CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s t z y uæ uã t r s { ESIST EN 12873-3:2019EN 12873-3:2019 (E) 2 Contents Page European foreword ....................................................................................................................................................... 3 Introduction .................................................................................................................................................................... 4 1 Scope .................................................................................................................................................................... 5 2 Normative references .................................................................................................................................... 5 3 Terms and definitions ................................................................................................................................... 5 4 Principle ............................................................................................................................................................. 6 5 Reagents ............................................................................................................................................................. 7 5.1 General ................................................................................................................................................................ 7 5.3 Cleaning liquids for glassware ................................................................................................................... 7 6 Apparatus ........................................................................................................................................................... 7 7 Test samples ..................................................................................................................................................... 8 8 Pre-treatment of test samples .................................................................................................................... 8 9 Test procedure ................................................................................................................................................. 8 9.1 General ................................................................................................................................................................ 8 9.2 Preparation of leachate sample ................................................................................................................. 8 9.3 Procedural blanks ........................................................................................................................................... 9 9.4 Analysis ............................................................................................................................................................ 10 10 Calculation of test results .......................................................................................................................... 10 10.1 Sampling mode A .......................................................................................................................................... 10 10.2 Sampling mode B .......................................................................................................................................... 10 11 Test report ...................................................................................................................................................... 11 Annex A (informative)
Flow diagram ................................................................................................................. 13 Annex B (informative)
Test apparatus .............................................................................................................. 14 Annex C (informative)
Resin pre-treatment .................................................................................................... 15
SIST EN 12873-3:2019EN 12873-3:2019 (E) 3 European foreword This document (EN 12873-3:2019) 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 August 2019, and conflicting national standards shall be withdrawn at the latest by August 2019. 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 12873-3:2006. This document will result in one of a series of standards on test methods which support the appropriate standards, for products in contact with water intended for human consumption. It has been drawn up with the objective to describe a test method to determine the migration of substances from ion exchange and absorbent resins. Evaluation of the efficiency of resins, in removing contaminants, is not included. Informative Annex A, provides a flow diagram of the steps in the test procedure. Informative Annex B, describes a test apparatus. Informative Annex C, provides information on resin pre-treatment. This standard is the third 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 major technical changes from EN 12873-3:2006 are:
Introduction of a second sampling methodSpecification of a method of control of the test device 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 12873-3:2019
EN 12873-3:2019 (E) 4 Introduction In respect of potential adverse effects on the quality of water intended for human consumption caused by materials, it should be remembered that, while awaiting the adoption of verifiable European acceptance criteria, the relevant national regulations remain in force. SIST EN 12873-3:2019
EN 12873-3:2019 (E) 5 1 Scope This document specifies a procedure to determine the migration of substances from ion exchange, adsorbent or hybrid resin materials for use in contact with water intended for human consumption. Resins comprise synthetic organic macromolecular materials. This standard is applicable to resins of the following types: — ion exchange resins: used to modify the composition of water (e.g. softening by removal of calcium ions). They can be in either an anionic or cationic state; — adsorbent resins: used to lower the concentration of undesirable substances (usually organic pollutants) from water. They are used in a neutral state; — hybrid adsorbers: Organic polymer based ion exchange resin or adsorbent resin with incorporated inorganic (e.g. iron hydroxide) or second organic phase. Used to lower the concentration of undesirable substances (specific inorganic or organic pollutants) from water. They can be in either an anionic, cationic or neutral state. 2 Normative references There are no normative references in this document. 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 test technical operation that consists of the determination of one or more characteristics of a given product 3.2 test procedure specified technical method for performing a test 3.3 test report document that presents test results and other information relevant to a test 3.4 testing laboratory laboratory that performs tests 3.5 product material, in its finished form that comes into contact with water SIST EN 12873-3:2019
EN 12873-3:2019 (E) 6 3.6 test sample sample of a product submitted for testing 3.7 test water water for migration testing (5.2) 3.8 blank water test water (5.2) which has been kept at the same specified conditions as migration water (see Clause 9) but without contact with the test sample 3.9 migration movement of a substance or substances from a test sample into the test water 3.10 bed volume (BV) volume in litres of wet resin, tapped to a constant volume, used in the test 3.11 regeneration part of the operating cycle of an ion-exchange resin process in which a specific chemical solution is passed through the resin bed to prepare it for a service run 3.12 exhaustion process in which a specific chemical solution is passed through the regenerated ion exchange resin bed to exchange the ions in this solution for an equivalent amount of ions from the resin bed to simulate an accelerated service run 3.13 cycling combination of exhaustion and regeneration 3.14 rinse washing process with specified medium 3.15 disinfection procedure, normally using chemicals, such as sodium hypochlorite or peracetic acid, carried out on a resin to inactivate microorganisms 3.16 resin volume measurement mark placed on the test column, using water as a resin substitute, to indicate the volume of resin required (9.2.4 and 9.2.5) 4 Principle If relevant, at the beginning of the test, the test sample is subjected to pre-treatment procedures according to the manufacturer’s instructions. SIST EN 12873-3:2019
EN 12873-3:2019 (E) 7 The test sample...
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