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  • UNI EN 12121 : 2013

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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    CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION - SODIUM DISULFITE

    Available format(s): 

    Superseded date:  08-06-2022

    Language(s): 

    Published date:  01-01-2013

    Publisher:  Ente Nazionale Italiano di Unificazione (UNI)

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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)

    Pertains to sodium disulfite used for treatment of water intended for human consumption.

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

    Document Type Standard
    Publisher Ente Nazionale Italiano di Unificazione (UNI)
    Status Superseded
    Superseded By
    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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