Standard
Track updates
AS 2564-1982
[Pending Revision]Aluminium ores - Determination of aluminium, silicon, iron, titanium and phosphorus contents - Wavelength dispersive X-ray fluorescence spectrometric method
Sets out a wavelength dispersive X-ray fluorescence procedure and includes both a computer program for obtaining the results and a statistical evaluation of the method. It is applicable to all normal aluminium ores regardless of mineralogical type.
Published: 18/10/1982
Pages: 42
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
PREFACE
1 SCOPE AND APPLICATION
1.1 Scope
1.2 Application
2 REFERENCED DOCUMENTS
3 PRINCIPLE
4 REAGENTS AND MATERIALS
4.1 General
4.2 Silicon dioxide (SiO2)
4.3 Aluminium oxide (Al2O3)
4.4 Synthetic Calibration Sample
4.4.1 Reagents
4.4.1.1 Silicon dioxide (SiO2)
4.4.1.2 Aluminium oxide (Al2O3)
4.4.1.3 Iron(III) oxide (Fe2O3)
4.4.1.4 Titanium dioxide (TiO2)
4.4.1.5 Ammonium dihydrogen orthophosphate (NH4H2PO4)
4.4.1.6 Calcium carbonate (CaCO3)
4.4.2 Preparation
4.5 Flux
4.5.1 Reagents
4.5.1.1 Anhydrous lithium tetraborate (Li2B4O7)
4.5.1.2 Lithium carbonate (Li2CO3)
4.5.1.3 Lanthanum oxide (La2O3)
4.5.1.4 Norrish and Hutton flux
4.5.1.5 Boric acid (H3BO3)
4.5.2 Apparatus
4.5.2.1 Crucible
4.5.2.2 Electric furnace
4.5.2.3 Aluminium sheet
4.5.3 Preparation using reagents 4.5.1.1, 4.5.1.2 and 4.5.1.3
4.5.4 Preparation using reagents 4.5.1.4 and 4.5.1.5.
4.5.5 Purity of flux
4.6 Desiccant
5 APPARATUS
5.1 Crucible
5.2 Desiccator
5.3 Electric Furnace
5.4 Gas Burner
5.5 Specimen Press
5.6 Plunger and Platen
5.7 Hotplates
5.8 Annealing Plates
5.9 Carborundum Stone
5.10 X-ray Fluorescence Spectrometer
6 SAMPLING AND SAMPLES
7 PREPARATION OF SPECIMENS INCLUDING LOSS ON FUSION DETERMINATION
7.1 Check Test Sample
7.2 Aluminium Ore Sample
7.2.1 Number of specimens
7.2.2 Drying of flux
7.2.3 Crucible cleaning
7.2.4 Weighing
7.2.5 Mixing
7.2.6 Heat-up and fusion
7.2.7 Weighing for loss on fusion
7.2.8 Re-fusion
7.2.9 Quenching and annealing
7.2.10 Removal of raised edges from the specimen
7.3 Blank (or Background) Samples
7.4 Synthetic Calibration Sample
8 X-RAY FLUORESCENCE MEASUREMENT OF SPECIMENS
8.1 General Instrumental Conditions
8.2 Sample Holders
8.3 Monitor Specimen
8.4 Measurement Sequence
9 PRELIMINARY CHECK AND CALCULATIONS
9.1 Reproducibility of Loss on Fusion
9.2 Acceptability of Background
9.3 Correction for Instrumental Drift
9.4 Comparison of Duplicate Measurements
9.5 Correction for Dead Time Losses
9.6 Conversion to Apparent Concentration
9.7 Acceptability of Specimens
10 CALCULATION OF RESULTS
10.1 Loss on Fusion
10.2 Oxide Components
10.2.1 Matrix coefficients
10.2.2 Nominal concentrations
10.2.3 Matrix corrections
11 GENERAL TREATMENT OF RESULTS
11.1 Precision
11.2 Acceptance of Analytical Values
12 TEST REPORT
APPENDIX A
A1 SCOPE
A2 INTRODUCTION
A3 PREPARATION OF GLASS FOR MONITOR SPECIMEN
A4 PREPARATION OF THE MONITOR SPECIMEN
APPENDIX B
B1 SCOPE
B2 GENERAL
B3 PROGRAM OPTIONS
B4 INPUT DATA
B5 OUTPUT DATA
Cited references in this standard
Content history
DR 81218
AS 2564-1982 Rec:2013