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  • 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    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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

    Available format(s): 

    Superseded date:  27-04-2022

    Language(s): 

    Published date:  14-11-2012

    Publisher:  Comite Europeen de Normalisation

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    Table of Contents - (Show below) - (Hide below)

    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

    Abstract - (Show below) - (Hide below)

    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).

    General Product Information - (Show below) - (Hide below)

    Committee CEN/TC 164
    Development Note Supersedes PREN 12121. (12/2012)
    Document Type Standard
    Publisher Comite Europeen de Normalisation
    Status Superseded
    Supersedes

    Standards Referencing This Book - (Show below) - (Hide below)

    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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