BS 1902-9.1:1987
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Methods of testing refractory materials. Chemical analysis by instrumental methods Analysis of alumino-silicate refractories by X-ray fluorescence
Hardcopy , PDF
30-04-2014
English
31-03-1987
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Foreword
Committees responsible
Methods
1 Scope
2 Principle
3 Preparation of the analysis sample
4 Reagents
5 Apparatus
6 Preparation of beads
7 Presentation of beads
8 XRF spectrometer
9 Ratio standard beads
10 Calibration standard beads
11 Alpha correction standard beads
12 Calibration
13 Line interference and background effects
14 Alpha corrections
15 Analysis
16 Correction for tungsten carbide contamination and
loss on ignition
17 Reporting of results
18 Test report
Appendices
A Tungsten carbide corrections with cobalt or nickel
bonds
B Monitoring of background and sensitivity
C Typical alpha corrections for rhodium end window
and chromium side window X-ray tubes
D Computation of third order equations
Tables
1 Ranges of content
2 Maximum allowable detection limits
3 Composition of ratio standard beads
4 Minor constituents on alumina
5 Minor constituents on each other
6 Rhodium end window tube empirical alpha corrections
(x 10 to the power 5)
7 Chromium side window tube empirical alpha
corrections (x 10 to the power 5)
Figure
1 Combined vessel for top surface presentation
Uses a specific type of instrument. The method is based on the fused cast bead technique. Appropriate calibrations are given.
| Committee |
RPI/1
|
| DevelopmentNote |
Supersedes 85/37609 DC (06/2005) Reviewed and confirmed by BSI, December 2009. (11/2009)
|
| DocumentType |
Standard
|
| Pages |
16
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy |
| BS 6886:1987 | Specification for alumino-silicate refractories for use in coke ovens |
| BS 1902-11:1991 | Methods of testing refractory materials Refractory mortars and putties |
| BS 7225-2.1:1990 | Classification of refractories. Unshaped refractory products Alumina, silica and alumino-silicate products |
| BS 7225-3.1:1990 | Classification of refractories. Ceramic fibre products Blankets, mats, felts and paper |
| BS 1902-2.1(1988) : 1988 | METHODS OF TESTING REFRACTORY MATERIALS - CHEMICAL ANALYSIS (WET METHODS) - CHEMICAL ANALYSIS OF REFRACTORIES CONTAINING SILICA AND/OR ALUMINA |
| BS 6870-3:1989 | Analysis of aluminium ores Method for multi-element analysis by wavelength dispersive X-ray fluorescence |
| BS 7225-1.2(1989) : 1989 | CLASSIFICATION OF REFRACTORIES - SHAPED REFRACTORY PRODUCTS - ALUMINA, SILICA AND ALUMINO SILICATE PRODUCTS |
| BS 1902-9.2:1987 | Methods of testing refractory materials. Chemical analysis by instrumental methods Analysis of silica refractories by X-ray fluorescence |
| BS 1902-2A:1964 | Methods of testing refractory materials Chemical analysis of high silica and aluminosilicate materials |
| BS 1902-2B:1967 | Methods of testing refractory materials Chemical analysis of aluminous materials |
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