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  • BS 7020-20:1990

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    Analysis of iron ores Method for the determination of water soluble chloride content. Ion-selective electrode method

    Available format(s):  Hardcopy, PDF

    Superseded date:  31-05-2007

    Language(s):  English

    Published date:  31-10-1990

    Publisher:  British Standards Institution

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

    Committees responsible
    National foreword
    Method
    1. Scope
    2. Normative references
    3. Principle
    4. Reagents
    5. Apparatus
    6. Sampling and samples
    7. Procedure
    8. Expression of results
    9. Test report
    Annexes
    A. Flowsheet of the procedure for the acceptance of
        analytical values for test samples
    B. Derivation of repeatability and permissible
        tolerance equations
    C. Graphical presentation of precision data obtained
        by international analytical trials
    Tables
    1. Calibration solutions required for each range of
        chloride content
    2. Preparation of calibration solutions
    3. Electrode potentials related to chloride
        concentration
    B.1 Water-soluble chloride contents of test samples
    Figure
    C.1 Least-squares fit of precision against X for
        water soluble chloride

    Abstract - (Show below) - (Hide below)

    Gives an ion-selective electrode method for determining water soluble chloride content of iron ores. Applicable to a concentration range of 0.005% to 0.1% of water soluble chloride in natural iron ores, and concentrates and agglomerates including sinter products. Covers normative references, principle, reagents, apparatus, sampling and samples, procedure, expression of results and test report.

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

    Committee W/-
    Development Note Reviewed and confirmed by BSI, January 2005. (12/2004) Supersedes 88/38041 DC Also numbered as ISO 9517 (09/2005)
    Document Type Standard
    Publisher British Standards Institution
    Status Superseded
    Superseded By

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

    BS 5660-1:1987 Methods of sampling iron ores Manual method of increment sampling
    ISO 648:2008 Laboratory glassware — Single-volume pipettes
    ISO 5725:1986 Precision of test methods Determination of repeatability and reproducibility for a standard test method by inter-laboratory tests
    BS 5660-2:2001 Methods of sampling iron ores Sampling and sample preparation procedures
    BS 7020-1:1988 Analysis of iron ores Method for the preparation of pre-dried test samples for chemical analysis
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