UNE-EN 938:2016
Current
The latest, up-to-date edition.
Chemicals used for treatment of water intended for human consumption - Sodium chlorite
Hardcopy , PDF
Spanish, Castilian, English
07-09-2016
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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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