EN 12121:2012
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Chemicals used for treatment of water intended for human consumption - Sodium disulfite
27-04-2022
14-11-2012
Foreword
Introduction
1 Scope
2 Normative references
3 Description
4 Purity criteria
5 Test methods
6 Labelling - Transportation - Storage
Annex A (informative) - General information on
sodium disulfite
Annex B (normative) - General rules relating to
safety
Bibliography
This European Standard is applicable to sodium disulfite used for treatment of water intended for human consumption. It describes the characteristics of sodium disulfite and specifies the requirements and the corresponding test methods for sodium disulfite. It gives information on its use in water treatment. It also determines the rules relating to safe handling and use (see Annex B).
| Committee |
CEN/TC 164
|
| DevelopmentNote |
Supersedes PREN 12121. (12/2012)
|
| DocumentType |
Standard
|
| PublisherName |
Comite Europeen de Normalisation
|
| Status |
Superseded
|
| Supersedes |
| Standards | Relationship |
| PN EN 12121 : 2013 | Identical |
| BS EN 12121:2012 | Identical |
| NBN EN 12121 : 2013 | Identical |
| DIN EN 12121:2013-02 | Identical |
| SS-EN 12121:2012 | Identical |
| SN EN 12121 : 2012 | Identical |
| I.S. EN 12121:2012 | Identical |
| NEN EN 12121 : 2012 | Identical |
| NS EN 12121 : 2012 | Identical |
| UNE-EN 12121:2013 | Identical |
| NF EN 12121 : 2013 | Identical |
| UNI EN 12121 : 2013 | Identical |
| DS EN 12121 : 2013 | Identical |
| ONORM EN 12121 : 2013 | Identical |
| ISO 3165:1976 | Sampling of chemical products for industrial use — Safety in sampling |
| ISO 6353-1:1982 | Reagents for chemical analysis — Part 1: General test methods |
| ISO 3629:2000 | Photography Processing chemicals Specifications for potassium metabisulfite |
| ISO 9297:1989 | Water quality Determination of chloride Silver nitrate titration with chromate indicator (Mohr's method) |
| ISO 3696:1987 | Water for analytical laboratory use — Specification and test methods |
| ISO 22743:2006 | Water quality Determination of sulfates Method by continuous flow analysis (CFA) |
| 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 |
| ISO 5993:1979 | Sodium hydroxide for industrial use — Determination of mercury content — Flameless atomic absorption spectrometric method |
| ISO 8213:1986 | Chemical products for industrial use — Sampling techniques — Solid chemical products in the form of particles varying from powders to coarse lumps |
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