EN 12671:2016

Chemicals used for treatment of water intended for human consumption - Chlorine dioxide generated in situ

This European Standard is applicable to chlorine dioxide generated on site for treatment of water intended for human consumption. It describes the characteristics for chlorine dioxide and specifies the composition and the corresponding test methods for chlorine dioxide. It gives information on its use in water treatment. It also determines the rules relating to safe handling and use of chlorine dioxide generated on site (see Annex B).

Produkte zur Aufbereitung von Wasser für den menschlichen Gebrauch - Vor Ort erzeugtes Chlordioxid

Diese Europäische Norm gilt für vor Ort erzeugtes Chlordioxid zur Aufbereitung von Wasser für den menschlichen Gebrauch. Sie beschreibt die Eigenschaften von Chlordioxid und legt die Zusammensetzung sowie die ent¬sprechenden Prüfverfahren für Chlordioxid fest. Sie enthält Angaben für dessen Anwendung in der Wasser¬aufbereitung. Sie legt darüber hinaus Regeln für die sichere Handhabung und Verwendung von vor Ort erzeugtem Chlordioxid fest (siehe Anhang B).

Produits chimiques utilisés pour le traitement de l’eau destinée à la consommation humaine - Dioxyde de chlore généré in situ

La présente Norme européenne est applicable au dioxyde de chlore généré in situ pour le traitement de l’eau destinée à la consommation humaine. Elle décrit les caractéristiques du dioxyde de chlore et précise la composition et les méthodes d’essai correspondantes du dioxyde de chlore. Elle donne des informations sur son emploi pour le traitement de l’eau. Elle fixe également les règles relatives à la sécurité d’emploi et de manipulation du dioxyde de chlore généré in situ (voir l’Annexe B).

Kemikalije, ki se uporabljajo za pripravo pitne vode - Klorov dioksid, proizveden na kraju samem

Ta dokument se uporablja za klorov dioksid, proizveden mestu uporabe, ki se uporablja za pripravo pitne vode. Opisuje lastnosti klorovega dioksida ter določa sestavo in ustrezne preskusne metode v povezavi z njim. Podaja informacije za njegovo uporabo pri pripravi vode. Določa tudi pravila za varno ravnanje s klorovim dioksidom, proizvedenim na mestu uporabe, in njegovo uporabo.

General Information

• Status: Published
• Publication Date: 24-May-2016
• Withdrawal Date: 29-Nov-2016
• ICS: 71.100.80 - Chemicals for purification of water
• Technical Committee: CEN/TC 164 - Water supply
• Drafting Committee: CEN/TC 164/WG 9 - Drinking water treatment
• Current Stage: 9092 - Decision on results of review/2YR ENQ - revise - Review Enquiry
• Start Date: 23-Jun-2022
• Completion Date: 14-Apr-2025
• Ref Project: SIST EN 12671:2016 - Chemicals used for treatment of water intended for human consumption - Chlorine dioxide generated in situ

Relations

• Replaces: EN 12671:2009 - Chemicals used for treatment of water intended for human consumption - Chlorine dioxide generated in situ
• Effective Date: 01-Jun-2016

Standards Content (Sample)

SLOVENSKI STANDARD
01-julij-2016
1DGRPHãþD
SIST EN 12671:2009
Kemikalije, ki se uporabljajo za pripravo pitne vode - Klorov dioksid, proizveden na
kraju samem
Chemicals used for treatment of water intended for human consumption - Chlorine
dioxide generated in situ
Produkte zur Aufbereitung von Wasser für den menschlichen Gebrauch - Vor Ort
erzeugtes Chlordioxid
Produits chimiques utilisés pour le traitement de l’eau destinée à la consommation
humaine - Dioxyde de chlore généré in situ
Ta slovenski standard je istoveten z: EN 12671:2016
ICS:
13.060.20 Pitna voda Drinking water
71.100.80 .HPLNDOLMH]DþLãþHQMHYRGH Chemicals for purification of
water
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 12671
EUROPEAN STANDARD
NORME EUROPÉENNE
May 2016
EUROPÄISCHE NORM
ICS 71.100.80 Supersedes EN 12671:2009
English Version
Chemicals used for treatment of water intended for human
consumption - Chlorine dioxide generated in situ
Produits chimiques utilisés pour le traitement de l'eau Produkte zur Aufbereitung von Wasser für den
destinée à la consommation humaine - Dioxyde de menschlichen Gebrauch - Vor Ort erzeugtes
chlore généré in situ Chlordioxid
This European Standard was approved by CEN on 18 March 2016.

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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, 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: Avenue Marnix 17, B-1000 Brussels
© 2016 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 12671:2016 E
worldwide for CEN national Members.

Contents Page
European foreword . 4
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Description . 6
3.1 Identification . 6
3.1.1 Chemical name . 6
3.1.2 Synonym or common name . 6
3.1.3 Relative molecular mass . 6
3.1.4 Empirical formula . 6
3.1.5 Chemical formula . 6
3.1.6 CAS Registry Number . 6
3.1.7 EINECS reference . 6
3.2 Presentation form . 7
3.3 Physical properties . 7
3.3.1 Appearance . 7
3.3.2 Density . 7
3.3.3 Solubility in water . 7
3.3.4 Vapour pressure . 7
3.3.5 Boiling point at 101,3 kPa . 8
3.3.6 Crystallization point . 8
3.3.7 Specific heat . 8
3.3.8 Viscosity (dynamic) . 8
3.3.9 Critical temperature . 8
3.3.10 Critical pressure . 8
3.3.11 Physical hardness . 8
3.3.12 Dissolution heat . 8
3.4 Chemical properties . 8
4 Purity criteria . 9
4.1 General . 9
4.2 Composition of in situ generated product . 9
4.3 Impurities and main by-products . 9
4.4 Chemical parameters . 9
5 Test methods . 10
5.1 Sampling . 10
5.2 Determination of chlorine dioxide and chlorite concentrations . 10
5.2.1 General . 10
5.2.2 Principle . 10
5.2.3 Reagents . 11
5.2.4 Apparatus . 12
5.2.5 Procedure. 12
5.2.6 Expression of results . 13
6 Labelling, distribution and storage . 13
6.1 Labelling according to the EU legislation . 13
6.2 Means of distribution . 15
6.3 Storage, stability . 15
Annex A (informative) General information on chlorine dioxide . 16
A.1 Origin . 16
A.1.1 Raw materials . 16
A.1.2 Manufacturing process . 16
A.2 Use . 17
A.2.1 Function . 17
A.2.2 Form in which it is used. 17
A.2.3 Treatment dose . 17
A.2.4 Means of application . 17
A.2.5 Secondary effects . 17
A.2.6 Removal of excess product . 17
A.3 Spectrometric method for specific determination of CIO . 17
A.3.1 Principle . 17
A.3.2 Reagents . 18
A.3.3 Apparatus . 18
A.3.4 Procedure . 19
A.3.5 Precision . 20
A.3.6 Specificity . 20
A.4 Determination of chlorite and chlorate ions contents in aqueous chlorine dioxide as
produced by the reactors . 20
A.4.1 General . 20
A.4.2 Sample collection and preparation . 20
A.4.3 Principle . 20
A.4.4 Reagents . 20
A.4.5 Apparatus . 21
A.4.6 Procedure . 21
A.4.7 Expre
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