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  • EN 12698-1:2007

    Current The latest, up-to-date edition.

    Chemical analysis of nitride bonded silicon carbide refractories - Part 1: Chemical methods

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    Language(s): 

    Published date:  28-03-2007

    Publisher:  Comite Europeen de Normalisation

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

    Foreword
    1 Scope
    2 Normative references
    3 Terms and Definitions
    4 Methods for determination
    5 Sampling
    6 Determination of free aluminium
       6.1 Principle
       6.2 Reagents
       6.3 Apparatus
       6.4 Sample preparation
       6.5 Procedure
       6.6 Calculation and expression of results
    7 Determination of total nitrogen
       7.1 General
       7.2 Determination of total nitrogen by carrier gas
            fusion (CGF)
       7.3 Determination of total nitrogen content by fusion
            decomposition
       7.4 Determination of total nitrogen content by Kjeldahl
            distillation
       7.5 Determination of total nitrogen by microwave digestion
    8 Determination of free silicon
    9 Determination of free silica
       9.1 Principle
       9.2 Reagents
       9.3 Apparatus
       9.4 Sample preparation
       9.5 Procedure
       9.6 Determination
       9.7 Calculation and expression of SiO[2] content
       9.8 Precision
    10 Determination of carbon
       10.1 Determination of the total carbon, C[t]
       10.2 Determination of free carbon, C[free]
    11 Calculation of silicon carbide content
    12 Determination of free alumina (Al[2]O[3])
       12.1 Principle
       12.2 Reagents
       12.3 Apparatus
       12.4 Procedure
       12.5 Calculation and expression of results
       12.6 Precision
    Annex A (informative) Determination of free carbon using
            the hot chromic sulfuric iodic acid method (10.2.1):
            Explanation for the evaluation of the different possible
            detection methods
          A.1 Coulometric detection system
          A.2 Infrared absorption detection system
          A.3 Conductometric detection system
    Bibliography

    Abstract - (Show below) - (Hide below)

    This standard describes the methods for the analysis of all refractory products containing nitride and oxynitride bonded silicon carbide, irrespective of the silicon carbide level. It includes details of sample preparation, general principles of chemical analysis and detailed methods for the determination of carbon, silicon carbide, free aluminium, free silicon, total nitrogen and oxygen.

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

    Committee CEN/TC 187
    Document Type Standard
    Publisher Comite Europeen de Normalisation
    Status Current

    Standards Referenced By This Book - (Show below) - (Hide below)

    DIN EN ISO 21068-1:2008-12 CHEMICAL ANALYSIS OF SILICON-CARBIDE-CONTAINING RAW MATERIALS AND REFRACTORY PRODUCTS - PART 1: GENERAL INFORMATION AND SAMPLE PREPARATION
    DIN EN ISO 21068-2:2008-12 CHEMICAL ANALYSIS OF SILICON-CARBIDE-CONTAINING RAW MATERIALS AND REFRACTORY PRODUCTS - PART 2: DETERMINATION OF LOSS ON IGNITION, TOTAL CARBON, FREE CARBON AND SILICON CARBIDE, TOTAL AND FREE SILICA AND TOTAL AND FREE SILICON
    EN 12475-4 : 1998 CLASSIFICATION OF DENSE SHAPED REFRACTORY PRODUCTS - PART 4: SPECIAL PRODUCTS
    EN 12698-2:2007 Chemical analysis of nitride bonded silicon carbide refractories - Part 2: XRD methods
    DIN EN 12698-2:2007-06 Chemical analysis of nitride bonded silicon carbide refractories - Part 2: XRD methods
    UNI EN ISO 21068-1 : 2008 CHEMICAL ANALYSIS OF SILICON-CARBIDE CONTAINING RAW MATERIALS AND REFRACTORY PRODUCTS - PART 1: GENERAL INFORMATION AND SAMPLE PREPARATION
    13/30261099 DC : 0 BS ISO 17947 - FINE CERAMICS (ADVANCED CERAMICS, ADVANCED TECHNICAL CERAMICS) - METHODS FOR CHEMICAL ANALYSIS OF FINE SILICON NITRIDE POWDERS
    BS ISO 17947:2014 Fine ceramics (advanced ceramics, advanced technical ceramics). Methods for chemical analysis of fine silicon nitride powders
    DIN EN ISO 21068-3:2008-12 CHEMICAL ANALYSIS OF SILICON-CARBIDE-CONTAINING RAW MATERIALS AND REFRACTORY PRODUCTS - PART 3: DETERMINATION OF NITROGEN, OXYGEN AND METALLIC AND OXIDIC CONSTITUENTS
    I.S. EN ISO 21068-2:2008 CHEMICAL ANALYSIS OF SILICON-CARBIDE-CONTAINING RAW MATERIALS AND REFRACTORY PRODUCTS - PART 2: DETERMINATION OF LOSS ON IGNITION, TOTAL CARBON, FREE CARBON AND SILICON CARBIDE, TOTAL AND FREE SILICA AND TOTAL AND FREE SILICON
    DIN EN 12698-2 E : 2007 CHEMICAL ANALYSIS OF NITRIDE BONDED SILICON CARBIDE REFRACTORIES - PART 2: XRD METHODS
    BS EN 12698-2:2007 Chemical analysis of nitride bonded silicon carbide refractories XRD methods
    BS EN ISO 21068-3:2008 Chemical analysis of silicon-carbide-containing raw materials and refractory products Determination of nitrogen, oxygen and metallic and oxidic constituents
    13/30261093 DC : 0 BS ISO 17942 - FINE CERAMICS (ADVANCED CERAMICS, ADVANCED TECHNICAL CERAMICS) - METHODS FOR CHEMICAL ANALYSIS OF BORON NITRIDE POWDERS
    UNI EN ISO 21068-3 : 2008 CHEMICAL ANALYSIS OF SILICON-CARBIDE CONTAINING RAW MATERIALS AND REFRACTORY PRODUCTS - PART 3: DETERMINATION OF NITROGEN, OXYGEN AND METALLIC AND OXIDIC CONSTITUENTS
    BS ISO 17942:2014 Fine ceramics (advanced ceramics, advanced technical ceramics). Methods for chemical analysis of boron nitride powders
    UNI EN ISO 21068-2 : 2008 CHEMICAL ANALYSIS OF SILICON-CARBIDE- CONTAINING RAW MATERIALS AND REFRACTORY PRODUCTS - PART 2: DETERMINATION OF LOSS ON IGNITION, TOTAL CARBON, FREE CARBON AND SILICON CARBIDE, TOTAL AND FREE SILICA AND TOTAL AND FREE SILICON
    BS EN ISO 21068-1:2008 Chemical analysis of silicon-carbide-containing raw materials and refractory products General information and sample preparation
    17/30327875 DC : DRAFT JAN 2017 BS ISO 16169 - PREPARATION OF SILICON CARBIDE AND SIMILAR MATERIALS FOR ANALYSIS BY ISO 12677 X-RAY FLUORESCENCE (XRF) - FUSED CAST-BEAD METHOD
    I.S. EN ISO 21068-1:2008 CHEMICAL ANALYSIS OF SILICON-CARBIDE-CONTAINING RAW MATERIALS AND REFRACTORY PRODUCTS - PART 1: GENERAL INFORMATION AND SAMPLE PREPARATION
    I.S. EN ISO 21068-3:2008 CHEMICAL ANALYSIS OF SILICON-CARBIDE-CONTAINING RAW MATERIALS AND REFRACTORY PRODUCTS - PART 3: DETERMINATION OF NITROGEN, OXYGEN AND METALLIC AND OXIDIC CONSTITUENTS
    ISO 21068-1:2008 Chemical analysis of silicon-carbide-containing raw materials and refractory products Part 1: General information and sample preparation
    ISO 21068-3:2008 Chemical analysis of silicon-carbide-containing raw materials and refractory products Part 3: Determination of nitrogen, oxygen and metallic and oxidic constituents
    ISO 21068-2:2008 Chemical analysis of silicon-carbide-containing raw materials and refractory products Part 2: Determination of loss on ignition, total carbon, free carbon and silicon carbide, total and free silica and total and free silicon
    BS EN 12475-4:1999 Classification of dense shaped refractory products Special products
    EN ISO 21068-2:2008 Chemical analysis of silicon-carbide-containing raw materials and refractory products - Part 2: Determination of loss on ignition, total carbon, free carbon and silicon carbide, total and free silica and total and free silicon (ISO 21068-2:2008)
    EN ISO 21068-3:2008 Chemical analysis of silicon-carbide-containing raw materials and refractory products - Part 3: Determination of nitrogen, oxygen and metallic and oxidic constituents (ISO 21068-3:2008)
    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 17947:2014 Fine ceramics (advanced ceramics, advanced technical ceramics) — Methods for chemical analysis of fine silicon nitride powders
    BS EN ISO 21068-2:2008 Chemical analysis of silicon-carbide-containing raw materials and refractory products Determination of loss on ignition, total carbon, free carbon and silicon carbide, total and free silica and total and free silicon
    ISO 17942:2014 Fine ceramics (advanced ceramics, advanced technical ceramics) Methods for chemical analysis of boron nitride powders

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

    ISO 5725-1:1994 Accuracy (trueness and precision) of measurement methods and results — Part 1: General principles and definitions
    ISO 3310-1:2016 Test sieves Technical requirements and testing Part 1: Test sieves of metal wire cloth
    ISO 5022:1979 Shaped refractory products Sampling and acceptance testing
    ISO 12677:2011 Chemical analysis of refractory products by X-ray fluorescence (XRF) Fused cast-bead method
    ISO 836:2001 Terminology for refractories
    EN 12475-4 : 1998 CLASSIFICATION OF DENSE SHAPED REFRACTORY PRODUCTS - PART 4: SPECIAL PRODUCTS
    EN 12698-2:2007 Chemical analysis of nitride bonded silicon carbide refractories - Part 2: XRD methods
    EN 955-2 : 1995 CHEMICAL ANALYSIS OF REFRACTORY PRODUCTS - PART 2: PRODUCTS CONTAINING SILICA AND/OR ALUMINA (WET METHOD)
    EN ISO 12677:2011 Chemical analysis of refractory products by X-ray fluorescence (XRF) - Fused cast-bead method (ISO 12677:2011)
    ENV 955-4 : 1997 CHEMICAL ANALYSIS OF REFRACTORY PRODUCTS - PRODUCTS CONTAINING SILICA AND/OR ALUMINA (ANALYSIS BY FLAME ATOMIC ABSORPTION SPECTROMETRY (FAAS) AND INDUCTIVELY COUPLED PLASMA ATOMIC EMISSION SPECTROGRAPHY ICP))
    EN 725-3:2007 Advanced technical ceramics - Methods of test for ceramic powders - Part 3: Determination of the oxygen content of non-oxides by thermal extraction with a carrier gas
    ISO 8656-1:1988 Refractory products Sampling of raw materials and unshaped products Part 1: Sampling scheme
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