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    I.S. EN 62021-2:2007

    Current The latest, up-to-date edition.

    INSULATING LIQUIDS - DETERMINATION OF ACIDITY - PART 2: COLOURIMETRIC TITRATION

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  01-01-2007

    Publisher:  National Standards Authority of Ireland

    For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
    Only cited Standards give presumption of conformance to New Approach Directives/Regulations.

    Dates of withdrawal of national standards are available from NSAI.

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

    FOREWORD
    INTRODUCTION
    1 Scope
    2 Normative references
    3 Terms and definitions
    4 Principle
    5 Reagents
       5.1 Titration reagent
       5.2 Titration solvent
       5.3 Potassium hydrogen phthalate, primary standard
       5.4 Standard hydrochloric acid solution
       5.5 Alkali Blue 6B indicator solution
       5.6 Cobalt nitrate solution
    6 Apparatus
       6.1 Titration vessel
       6.2 Stirrer
       6.3 Burette
    7 Sampling
    8 Procedure
       8.1 Standardization of alcoholic potassium hydroxide
            solution
       8.2 Blank titration
       8.3 Sample titration
    9 Calculation of results
    10 Precision
       10.1 Repeatability
       10.2 Reproducibility
    11 Report
    Annex A (informative) Determination of acidity in electrical
             insulating oils photometric titration
    Annex ZA (normative) Normative references to international
             publications with their corresponding European
             publications

    Abstract - (Show below) - (Hide below)

    Specifies a procedure for determination of the acidity of unused and used electrical mineral insulating oils.

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

    Development Note For CENELEC adoptions of IEC publications, please check www.iec.ch to be sure that you have any corrigenda that may apply. (01/2017)
    Document Type Standard
    Publisher National Standards Authority of Ireland
    Status Current

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

    IEC 60475:2011 Method of sampling insulating liquids
    IEC 60567:2011 Oil-filled electrical equipment - Sampling of gases and analysis of free and dissolved gases - Guidance
    ISO 5725:1986 Precision of test methods Determination of repeatability and reproducibility for a standard test method by inter-laboratory tests
    ISO 6619:1988 Petroleum products and lubricants — Neutralization number — Potentiometric titration method
    EN 60567:2011 OIL-FILLED ELECTRICAL EQUIPMENT - SAMPLING OF GASES AND ANALYSIS OF FREE AND DISSOLVED GASES - GUIDANCE (IEC 60567:2011)
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