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  • BS EN 12121:2012

    Withdrawn A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
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    Chemicals used for treatment of water intended for human consumption. Sodium disulfite

    Available format(s):  Hardcopy, PDF

    Withdrawn date:  29-04-2022

    Language(s):  English

    Published date:  31-01-2013

    Publisher:  British Standards Institution

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    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).

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    Committee CII/59
    Development Note Supersedes 95/125141 DC (08/2004) Supersedes 12/30258182 DC. (02/2013)
    Document Type Standard
    Publisher British Standards Institution
    Status Withdrawn
    Superseded By

    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)
    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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