• BS EN 15979:2011

    Current The latest, up-to-date edition.

    Testing of ceramic raw and basic materials. Direct determination of mass fractions of impurities in powders and granules of silicon carbide by OES by DC arc excitation

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  28-02-2011

    Publisher:  British Standards Institution

    Add To Cart

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

    Foreword
    1 Scope
    2 Principle
    3 Spectrometry
    4 Apparatus
    5 Reagents
    6 Sampling and preparation of test samples
    7 Calibration
    8 Procedure
    9 Calculation
    10 Expression of results
    11 Precision
    12 Test report
    Annex A (informative) - Results of inter-laboratory study
    Annex B (informative) - Wavelength and working range
    Annex C (informative) - Possible interferences and their
            elimination
    Annex D (informative) - Information regarding the evaluation of
            the uncertainty of the mean value
    Annex E (informative) - Commercial certified reference materials
    Bibliography

    Abstract - (Show below) - (Hide below)

    Specifies the method for the analysis of mass fractions of the impurities Al, B, Ca, Cr, Cu, Fe, Mg, Ni, Ti, V and Zr in powder- and grain-shaped silicon carbide of ceramic raw and basic materials.

    Scope - (Show below) - (Hide below)

    This European Standard describes the method for the analysis of mass fractions of the impurities Al, B, Ca, Cr, Cu, Fe, Mg, Ni, Ti, V and Zr in powder and grain-shaped silicon carbide of ceramic raw and basic materials. This application can also be extended to other metallic elements and other similar non-metallic powder and grain-shaped materials such as carbides, nitrides, graphite, carbon blacks, cokes, carbon, as well as a number of further oxidic raw and basic materials after appropriate testing. NOTE There are positive interferences for materials such as e.g. graphite, B4C, BN, WC and several refractory metal oxides. This testing procedure is applicable to mass fractions of the impurities mentioned above from approximately 1 mg/kg up to approximately 3 000 mg/kg, after verification. In some cases it may be possible to extend the range up to 5 000 mg/kg depending on element, wavelength, arc parameter, and sample weight.

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

    Committee RPI/1
    Development Note Supersedes 09/30187538 DC. (02/2011)
    Document Type Standard
    Publisher British Standards Institution
    Status Current
    Supersedes

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

    ISO 5022:1979 Shaped refractory products Sampling and acceptance testing
    EN ISO 21068-1:2008 Chemical analysis of silicon-carbide-containing raw materials and refractory products - Part 1: General information and sample preparation (ISO 21068-1:2008)
    ISO 5725-4:1994 Accuracy (trueness and precision) of measurement methods and results Part 4: Basic methods for the determination of the trueness of a standard measurement method
    ISO 21068-1:2008 Chemical analysis of silicon-carbide-containing raw materials and refractory products Part 1: General information and sample preparation
    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 8656-1:1988 Refractory products Sampling of raw materials and unshaped products Part 1: Sampling scheme
    ISO/IEC Guide 98-3:2008 Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in measurement (GUM:1995)
    • Access your standards online with a subscription

      Features

      • Simple online access to standards, technical information and regulations
      • Critical updates of standards and customisable alerts and notifications
      • Multi - user online standards collection: secure, flexibile and cost effective