EN 17818:2023
(Main)Devices for in-situ generation of biocides - Active chlorine generated from sodium chloride by electrolysis
Devices for in-situ generation of biocides - Active chlorine generated from sodium chloride by electrolysis
This document defines the minimum requirements for treatment systems, which generate the active substance - “Active chlorine” - from sodium chloride by electrolysis for on-site (in situ) operation.
The in situ generated active substance (IGAS), in this case active chlorine, may be put into a solution (“off-line”) or directly generated in the pipes (“in-line”).
This document specifies the device construction, and test methods for the equipment used for in situ generation of active chlorine. It specifies requirements for instructions for installation, operation, maintenance, safety and for documentation to be provided with the product.
The in situ generation of active substances and the placing of their precursors on the EU market are subject to the specifications of the Biocidal Products Regulation (EU) 528/2012 [“Biocidal products”]. Active substances, generated by devices, which are claiming compliance with this document, shall comply with the BPR for both the registered active chlorine, quality standards and the precursor in accordance with appropriate application and “Product Type” as listed in the BPR.
This standard does not identify applications for in situ devices for generation of active chlorine. The range of applications for in situ generation of chlorine is diverse. It is the responsibility of the economic operator/product supplier, claiming compliance with this standard, to identify the appropriate system type and operating conditions for the specific application and to:
- specify the quality of the biocide appropriate to the application. This may be defined in national or international standards;
- specify the appropriate product type and operating conditions (concentration, dosage rate and quality of the active chlorine);
- specify any other regulatory requirements relevant to the specific application;
- specify the appropriate precursor sodium chloride, for the application;
- and to label the product accordingly.
Anlagen zur In-Situ-Erzeugung von Bioziden - Aktives Chlor hergestellt aus Natriumchlorid durch Elektrolyse
Dieses Dokument legt die Mindestanforderungen an Aufbereitungssysteme fest, die den Wirkstoff – „aktives Chlor“ – durch Elektrolyse aus Natriumchlorid für den Betrieb vor Ort (in situ) erzeugen.
Der in situ erzeugte Wirkstoff (IGAS, en: in-situ generated active substance), in diesem Fall aktives Chlor, kann in eine Lösung gegeben werden („off line“) oder direkt in Rohrleitungen erzeugt werden („in line“).
Dieses Dokument legt den Bau der Anlage und die Prüfverfahren für die Ausrüstung zur In-situ-Erzeugung von aktivem Chlor fest. Es gibt die Anforderungen an Anleitungen zum Einbau, zum Betrieb, zur Wartung und zur Sicherheit sowie an die mit dem Produkt zu liefernde Dokumentation an.
Die In-situ-Erzeugung von Wirkstoffen und das Inverkehrbringen der erforderlichen Präkursor auf dem europäischen Markt unterliegen den Angaben der Biozid-Verordnung (EU) 528/2012 [„Biozid-Produkte“]. Wirkstoffe, die von Anlagen erzeugt werden, die den Angaben zufolge die Anforderungen dieses Dokuments einhalten, müssen der Biozid-Verordnung (BPR, en: Biocidal Products Regulation) sowohl in Bezug auf das registrierte aktive Chlor als auch auf die Qualitätsstandards und die Präkursor in Übereinstimmung mit der entsprechenden Anwendung und der in der Biozid-Verordnung aufgeführten „Produktart“ entsprechen.
In dieser Norm werden keine Anwendungen für In-situ-Anlagen zur Erzeugung von aktivem Chlor festgelegt. Der Anwendungsbereich für die In-situ-Erzeugung von Chlor ist vielfältig. Es liegt in der Verantwortung des Wirtschaftsteilnehmers/Produktlieferanten, der sich zur Einhaltung dieser Norm verpflichtet, den geeigneten Systemtyp und die Betriebsbedingungen für die jeweilige Anwendung zu ermitteln und:
die Qualität des Biozids für die jeweilige Anwendung anzugeben. Diese ist unter Umständen in nationalen oder internationalen Normen festgelegt;
den geeigneten Produkttyp und die Betriebsbedingungen (Konzentration, Dosierrate und Qualität des aktiven Chlors) anzugeben;
sonstige regulatorische Anforderungen, die für die jeweilige Anwendung relevant sind, anzugeben;
den für die Anwendung geeigneten Präkursor Natriumchlorid anzugeben;
und das Produkt entsprechend zu kennzeichnen.
Équipements pour le production in situ de biocides - Chlore actif produit à partir de chlorure de sodium par électrolyse
Le présent document définit les exigences minimales applicables aux systèmes de traitement, qui produisent la substance active « chlore actif » par électrolyse de chlorure de sodium pour un fonctionnement sur site (in situ).
La substance active produite in situ, dans le cas présent le chlore actif, peut être mise en solution (« hors ligne ») ou directement produite dans les canalisations (« en ligne »).
Le présent document spécifie la construction du dispositif ainsi que les méthodes d’essai applicables à l'équipement utilisé pour la production in situ de chlore actif. Il spécifie les exigences relatives aux instructions d’installation, de fonctionnement, de maintenance et de sécurité, ainsi que la documentation à fournir avec le produit.
La production in situ de substances actives et la mise à disposition sur le marché européen de leurs précurseurs sont soumises aux spécifications du Règlement relatif aux produits biocides (UE) n° 528/2012 [« Produits biocides »] ou RPB. Les substances actives, produites par les dispositifs, qui revendiquent la conformité au présent document, doivent satisfaire au RPB pour le chlore actif enregistré, les normes de qualité et le précurseur selon l’application appropriée et le « type de produit » répertorié dans le RPB.
La présente norme n’identifie pas les applications relatives aux dispositifs pour la production in situ de chlore actif. La gamme d’applications pour la production in situ de chlore actif est large. Il incombe à l’opérateur économique/fournisseur qui revendique la conformité à la présente norme, d’identifier le type de système approprié et les conditions de fonctionnement pour l’application spécifique et de :
— spécifier la qualité du biocide approprié à l’application. La qualité peut être définie dans les normes nationales ou internationales ;
— spécifier le type de produit approprié et les conditions de fonctionnement (concentration, taux de dose et qualité du chlore actif) ;
— spécifier toute autre exigence réglementaire correspondant à l’application spécifique ;
— spécifier le précurseur chlorure de sodium approprié pour l’application ;
— et étiqueter le produit en conséquence.
Naprave za proizvodnjo biocidov na kraju samem - Aktivni klor, pridobljen iz natrijevega klorida z elektrolizo
Ta dokument določa minimalne zahteve za sisteme za obdelavo, kjer se z elektrolizo na kraju samem iz natrijevega klorida proizvaja aktivna snov »aktivni klor«.
Aktivno snov, ki se proizvaja na kraju samem, v tem primeru aktivni klor, se lahko dodaja v raztopino (»zunaj voda«) ali se jo neposredno tvori v ceveh (»v vodih«).
Ta dokument določa sestavo naprave in preskusne metode za opremo, ki se uporablja za tvorjenje aktivnega klora na kraju samem. Določa zahteve za navodila za namestitev, upravljanje, vzdrževanje, varnost in za dokumentacijo, ki se jo priloži proizvodu.
Proizvodnja aktivnih snovi na kraju samem in dajanje njihovih predhodnih sestavin na trg EU je predmet posebnih določb Uredbe o biocidnih proizvodih (EU) 528/2012 [»biocidni proizvodi«]). Aktivne snovi, ki jih proizvajajo naprave, ki naj bi bile skladne s tem dokumentom, morajo biti skladne z Uredbo o biocidnih proizvodih tako za registrirani aktivni klor, standarde kakovosti in predhodne sestavine v skladu z ustrezno uporabo in »vrsto proizvoda«, kot je navedeno v Uredbi o biocidnih proizvodih.
Ta standard ne določa načinov uporabe za naprave za proizvodnjo aktivnega klora na kraju samem. Možnosti uporabe proizvodnje klora na kraju samem so široke. Gospodarski subjekt/dobavitelj proizvoda, ki dokazuje skladnost s tem standardom, je odgovoren za določitev ustrezne vrste sistema in obratovalnih pogojev za določen način uporabe in za:
– določitev kakovosti biocida, ki ustreza načinu uporabe. To je lahko opredeljeno v nacionalnih ali mednarodnih standardih;
– določitev ustrezne vrste proizvoda (glej točko 7) in obratovalnih pogojev (vsebnost, raven odmerka in kakovost aktivnega klora);
– določitev drugih zakonodajnih zahtev v zvezi z določenim načinom uporabe;
– določitev ustreznih predhodnih sestavin natrijevega klorida (naravna ali umetna solnica) za način uporabe;
– in za ustrezno označevanje proizvoda.
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-marec-2024
Naprave za proizvodnjo biocidov na kraju samem - Aktivni klor, pridobljen iz
natrijevega klorida z elektrolizo
Devices for in-situ generation of biocides - Active chlorine generated from sodium
chloride by electrolysis
Anlagen zur In-Situ-Erzeugung von Bioziden - Aktives Chlor hergestellt aus
Natriumchlorid durch Elektrolyse
Équipements pour le production in situ de biocides - Chlore actif produit à partir de
chlorure de sodium par électrolyse
Ta slovenski standard je istoveten z: EN 17818:2023
ICS:
13.060.20 Pitna voda Drinking water
71.100.80 Kemikalije za čiščenje vode Chemicals for purification of
water
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 17818
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2023
EUROPÄISCHE NORM
ICS 13.060.20
English Version
Devices for in-situ generation of biocides - Active chlorine
generated from sodium chloride by electrolysis
Équipements pour le production in situ de biocides - Anlagen zur In-Situ-Erzeugung von Bioziden - Aktives
Chlore actif produit à partir de chlorure de sodium par Chlor hergestellt aus Natriumchlorid durch Elektrolyse
électrolyse
This European Standard was approved by CEN on 27 November 2023.
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, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATIO N
EUROPÄISCHES KOMITEE FÜR NORMUN G
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 17818:2023 E
worldwide for CEN national Members.
Contents Page
European foreword . 4
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
4 Requirements . 10
4.1 General. 10
4.2 Design . 10
4.2.1 Temperature. 10
4.2.2 Backflow prevention. 10
4.2.3 Safety . 10
4.3 Performance . 10
4.4 Instructions . 10
5 Electrolysis system and components . 10
5.1 General. 10
5.2 Electrolysis cell . 10
5.3 Control unit . 11
5.4 Optional items . 11
5.4.1 Flow detector . 11
5.4.2 System for dissipating stray electrical currents . 11
5.4.3 Chlorine production adjustment feature . 11
5.4.4 Temperature probe . 12
5.4.5 Conductivity / TDS probe . 12
5.4.6 Buffer tank . 12
6 Process variants . 12
6.1 Overview of process variants . 12
6.2 Electrolysis systems with non-divided electrolysis cell . 14
6.2.1 General. 14
6.2.2 Processes with lower generation capacity and short-term operation . 14
6.2.3 Processes with high generation capacity and/or long-term operation . 17
6.3 Electrolysis system with divided electrolysis cell (membrane or diaphragm) . 19
6.3.1 General. 19
6.3.2 Process with acidic chlorine solution . 20
6.3.3 Process with neutral chlorine solution . 22
6.3.4 Process with alkaline chlorine solution . 24
7 Safety requirements . 25
7.1 General requirements . 25
7.2 Hydrogen. 25
7.3 Chlorine gas . 26
7.4 Excess products and solutions . 26
7.5 Buffer tank . 26
7.6 Safety bunds . 27
7.7 Prevention against backflow . 27
8 Equipment of the room or area for installation of the electrolysis system . 27
9 Operation and maintenance . 28
10 Test requirements . 28
10.1 General . 28
10.2 Scope of testing . 29
10.2.1 General . 29
10.2.2 System documentation . 29
10.2.3 Chemical characterization. 29
10.2.4 Determination of the active chlorine content (main constituent). 33
−
10.2.5 Determination of the chlorate content (ClO ). 35
−
10.2.6 Determination of the bromate content (BrO ) . 36
−
10.2.7 Determination of the chloride content (Cl ) . 36
Annex A (informative) Natural decay of stored hypochlorite solutions . 38
A.1 General . 38
A.2 Decay reactions . 38
A.3 Factors influencing chlorine decay and chlorate formation . 39
A.3.1 Influence of temperature and storage time . 39
A.3.2 Chlorate formation vs. time and temperature . 40
A.3.3 Influence of initial concentration vs. days of storage . 41
A.4 Influence of pH . 41
A.5 Influence of decay catalysers (pollutants) and prevention . 42
Bibliography . 43
European foreword
This document (EN 17818:2023) 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 June 2024, and conflicting national standards shall be
withdrawn at the latest by June 2024.
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.
Devices according to this document may be used in different fields of application, e.g. drinking water,
swimming pool water, wastewater, air treatment, surface disinfection, etc. Additional requirements to
this document shall be observed, where appropriate for the specific application.
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, Türkiye and the United
Kingdom.
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