EN 938:2009

Chemicals used for treatment of water intended for human consumption - Sodium chlorite

This European Standard is applicable to sodium chlorite used for treatment of water intended for human consumption. It describes the characteristics of sodium chlorite and specifies the requirements and the corresponding test methods for sodium chlorite. It gives information on its use in water treatment.

Produkte zur Aufbereitung von Wasser für den menschlichen Gebrauch - Natriumchlorit

Diese Europäische Norm gilt für Natriumchlorit zur Aufbereitung von Wasser für den menschlichen Gebrauch. Sie beschreibt die Eigenschaften von Natriumchlorit und legt die Anforderungen sowie die entsprechenden Prüfverfahren für Natriumchlorit fest. Sie enthält Angaben zu dessen Anwendung in der Wasseraufbereitung.

Produits chimiques utilisés pour le traitement de l'eau destinée à la consommation humaine - Chlorite de sodium

La présente Norme européenne est applicable au chlorite de sodium utilisé pour le traitement de l'eau destinée à la consommation humaine. Elle décrit les caractéristiques du produit et spécifie les prescriptions et les méthodes d'essai correspondant au chlorite de sodium. Elle donne des informations pour son emploi dans le traitement de l'eau.

Kemikalije, ki se uporabljajo za pripravo pitne vode - Natrijev klorit

General Information

• Status: Withdrawn
• Publication Date: 13-Jan-2009
• Withdrawal Date: 24-May-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: 9960 - Withdrawal effective - Withdrawal
• Completion Date: 25-May-2016
• Ref Project: SIST EN 938:2009 - Chemicals used for treatment of water intended for human consumption - Sodium chlorite

Relations

• Replaces: EN 938:1999 - Chemicals used for treatment of water intended for human consumption - Sodium chlorite
• Effective Date: 21-Jan-2009
• Replaced By: EN 938:2016 - Chemicals used for treatment of water intended for human consumption - Sodium chlorite
• Effective Date: 10-Jul-2013

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 938:2009
01-maj-2009
1DGRPHãþD
SIST EN 938:2000
Kemikalije, ki se uporabljajo za pripravo pitne vode - Natrijev klorit
Chemicals used for treatment of water intended for human consumption - Sodium
chlorite
Produkte zur Aufbereitung von Wasser für den menschlichen Gebrauch - Natriumchlorit
Produits chimiques utilisés pour le traitement de l'eau destinée à la cnosommation
humaine - Chlorite de sodium
Ta slovenski standard je istoveten z: EN 938:2009
ICS:
13.060.20 Pitna voda Drinking water
71.100.80 .HPLNDOLMH]DþLãþHQMHYRGH Chemicals for purification of
water
SIST EN 938:2009 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 938:2009

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SIST EN 938:2009
EUROPEAN STANDARD
EN 938
NORME EUROPÉENNE
EUROPÄISCHE NORM
January 2009
ICS 71.100.80 Supersedes EN 938:1999
English Version
Chemicals used for treatment of water intended for human
consumption - Sodium chlorite
Produits chimiques utilisés pour le traitement de l'eau Produkte zur Aufbereitung von Wasser für den
destinée à la consommation humaine - Chlorite de sodium menschlichen Gebrauch - Natriumchlorit
This European Standard was approved by CEN on 5 December 2008.
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 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 Management Centre has the same status as the
official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, 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 STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2009 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 938:2009: E
worldwide for CEN national Members.

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SIST EN 938:2009
EN 938:2009 (E)
Contents Page
Foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Description . 5
3.1 Identification . 5
3.2 Commercial form . 6
3.3 Physical properties . 6
3.4 Chemical properties . 7
4 Purity criteria . 8
4.1 General . 8
4.2 Composition of commercial product . 8
4.3 Impurities and main by-products . 8
4.4 Chemical parameters .
...