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BS EN 12698-2:2007

Current
Current

The latest, up-to-date edition.

Chemical analysis of nitride bonded silicon carbide refractories XRD methods
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

05-31-2007

Foreword
1 Scope
2 Normative references
3 Definitions
4 Apparatus
5 Sampling
6 Procedure
  6.1 Sample preparation
  6.2 Measuring parameters
  6.3 Qualitative analysis
  6.4 Quantitative analysis
7 Precision
  7.1 Repeatability
  7.2 Reproducibility
8 Test report
Annex A (normative) X-ray diffraction data for the
        determination of Beta'-SiAION content
  A.1 General
  A.2 Example of calculation of z-value for Beta'-SiAION
Bibliography

Specifies methods for the determination of mineralogical phases typically apparent in nitride and oxy-nitride bonded silicon carbide refractory products using a Bragg-Brentano diffractometer.

This standard describes methods for the determination of mineralogical phases typically apparent in nitride and oxy-nitride bonded silicon carbide refractory products using a Bragg-Brentano diffractometer. It includes details of sample preparation and general principles for qualitative and quantitative analysis of mineralogical phase composition. Quantitative determination of ?-Si3N4, ?-Si3N4, Si2ON2, AlN, and SiAlON are described. NOTE For the refinement procedures the total nitrogen content, analysed in accordance with EN 12698-1 is needed.

Committee
RPI/1
DevelopmentNote
Reviewed and confirmed by BSI, July 2012. (06/2012)
DocumentType
Standard
Pages
16
PublisherName
British Standards Institution
Status
Current

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
EN 12698-1:2007 Chemical analysis of nitride bonded silicon carbide refractories - Part 1: Chemical methods
ISO 565:1990 Test sieves — Metal wire cloth, perforated metal plate and electroformed sheet — Nominal sizes of openings
ISO 836:2001 Terminology for refractories
EN 12475-4 : 1998 CLASSIFICATION OF DENSE SHAPED REFRACTORY PRODUCTS - PART 4: SPECIAL PRODUCTS
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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