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UNE-EN 938:2016

Current
Current

The latest, up-to-date edition.

Chemicals used for treatment of water intended for human consumption - Sodium chlorite
Available format(s)

Hardcopy , PDF

Language(s)

Spanish, Castilian, English

Published date

09-07-2016

Foreword
Introduction
1 Scope
2 Normative references
3 Description
3.1 Identification
3.2 Commercial form
3.3 Physical properties
3.4 Chemical properties
4 Purity criteria
4.1 Composition of commercial product
4.2 Impurities and main by-products
4.3 Toxic substances
5 Test methods
5.1 Sampling
5.2 Analysis
6 Labelling - Transportation - Storage
6.1 Means of delivery
6.2 Risk and safety labelling according to EU Directives
6.3 Transportation regulations and labelling
6.4 Marking
6.5 Storage
Annex A (informative) General information on sodium chlorite
Annex B (normative) General rules relating to safety
Annex C (normative) Determination of arsenic, antimony and
selenium (atomic absorption spectrometry hydride technique)
Bibliography

Deals with sodium chlorite used for water treatment meant for human consumption. Covers features of sodium chlorite and defines the requirements and associated test procedures for sodium chlorite. Provides information on its use in treatment of water.

Committee
CTN 77/SC 1
DocumentType
Standard
Pages
36
PublisherName
Asociacion Espanola de Normalizacion
Status
Current
Supersedes

Standards Relationship
NBN EN 938 : 2016 Identical
NF EN 938 : 2016 Identical
NEN EN 938 : 2016 Identical
NS EN 938 : 2016 Identical
I.S. EN 938:2016 Identical
SN EN 938 : 2016 Identical
UNI EN 938 : 2009 Identical
BS EN 938:2009 Identical
EN 938:2016 Identical
DIN EN 938:2016-09 Identical

ISO 3165:1976 Sampling of chemical products for industrial use — Safety in sampling
EN ISO 12846:2012 Water quality - Determination of mercury - Method using atomic absorption spectrometry (AAS) with and without enrichment (ISO 12846:2012)
ISO/TS 17379-2:2013 Water quality — Determination of selenium — Part 2: Method using hydride generation atomic absorption spectrometry (HG-AAS)
ISO 12846:2012 Water quality — Determination of mercury — Method using atomic absorption spectrometry (AAS) with and without enrichment
ISO 9174:1998 Water quality Determination of chromium Atomic absorption spectrometric methods
ISO 8288:1986 Water quality — Determination of cobalt, nickel, copper, zinc, cadmium and lead — Flame atomic absorption spectrometric methods
ISO 3696:1987 Water for analytical laboratory use — Specification and test methods
ISO 17378-2:2014 Water quality Determination of arsenic and antimony Part 2: Method using hydride generation atomic absorption spectrometry (HG-AAS)
EN ISO 3696:1995 Water for analytical laboratory use - Specification and test methods (ISO 3696:1987)
ISO 6206:1979 Chemical products for industrial use — Sampling — Vocabulary

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