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  • BS ISO 12739 : 2006

    Current The latest, up-to-date edition.
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    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  01-01-2006

    Publisher:  British Standards Institution

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

    1 Scope
    2 Normative references
    3 Principle
    4 Reagents
    5 Apparatus
    6 Sample
       6.1 Test sample
       6.2 Test portion
    7 Procedure
       7.1 Number of determinations
       7.2 Blank test
       7.3 Dissolution of test portion
       7.4 Preparation of the ion-exchange column
       7.5 Adsorption of zinc on ion-exchange column
       7.6 Elution of zinc from ion-exchange column
       7.7 Titration
       7.8 Determination of the titration factor of the
           EDTA standard volumetric solution
    8 Expression of results
    9 Precision
       9.1 Expression of precision
       9.2 Procedure for obtaining the final result
       9.3 Between-laboratories precision
       9.4 Check of trueness
    10 Test report
    Annex A (normative) Ion-exchange resins and columns
    Annex B (normative) Procedure for the preparation
            and determination of the mass of a predried
            test portion
    Annex C (normative) Determination of cadmium by atomic
            absorption spectrometry
    Annex D (normative) Flowchart of the procedure for the
            acceptance of analytical values for test samples
    Annex E (informative) Effect of potentially interfering
    Annex F (informative) Derivation of precision equations

    Abstract - (Show below) - (Hide below)

    Determines an ion-exchange/EDTA titrimetric method for the determination of the mass fraction of zinc in zinc concentrates.

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

    Committee NFE/36
    Development Note Supersedes 05/30116635 DC. (07/2006)
    Document Type Standard
    Publisher British Standards Institution
    Status Current

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

    ISO 9599:2015 Copper, lead, zinc and nickel sulfide concentrates Determination of hygroscopic moisture content of the analysis sample Gravimetric method
    ISO 4787:2010 Laboratory glassware Volumetric instruments Methods for testing of capacity and for use
    ISO 385:2005 Laboratory glassware Burettes
    ISO 1042:1998 Laboratory glassware One-mark volumetric flasks
    ISO 648:2008 Laboratory glassware Single-volume pipettes
    ISO Guide 35:2017 Reference materials Guidance for characterization and assessment of homogeneity and stability
    ISO 5725-2:1994 Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method
    ISO 3696:1987 Water for analytical laboratory use Specification and test methods
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