AS 2564-1982

1 - AS 2564-1982 ALUMINIUM ORES - DETERMINATION OF ALUMINIUM, SILICON, IRON, TITANIUM AND PHOSPHORUS CONTENTS - WAVELENGTH DISPE
3 - PREFACE
3 - CONTENTS
4 - 1 SCOPE AND APPLICATION.
4 - 1.1 Scope.
4 - 1.2 Application.
4 - 2 REFERENCED DOCUMENTS.
4 - 3 PRINCIPLE.
4 - 4 REAGENTS AND MATERIALS.
4 - 4.1 General.
4 - 4.2 Silicon dioxide (SiO2)
4 - 4.3 Aluminium oxide (Al2O3)
4 - 4.4 Synthetic Calibration Sample.
5 - 4.5 Flux.
6 - 4.6 Desiccant.
6 - 5 APPARATUS.
6 - 5.1 Crucible.
6 - 5.2 Desiccator.
6 - 5.3 Electric Furnace.
6 - 5.4 Gas Burner.
6 - 5.5 Specimen Press.
6 - 5.6 Plunger and Platen.
6 - 5.7 Hotplates.
6 - 5.3 Annealing Plates.
6 - 5.9 Carborundum Stone.
6 - 5.10 X-ray Fluorescence Spectrometer.
6 - 6 SAMPLING AND SAMPLES.
6 - 7 PREPARATION OF SPECIMENS INCLUDING LOSS ON FUSION DETERMINATION.
6 - 7.1 Check Test Sample.
6 - 7.2 Aluminium Ore Sample.
10 - 7.3 Blank (or Background) Samples.
10 - 7.4 Synthetic Calibration Sample.
10 - 8 X-RAY FLUORESCENCE MEASUREMENT OF SPECIMENS.
10 - 8.1 General Instrumental Conditions.
11 - 8.2 Sample Holders.
11 - 8.3 Monitor Specimen.
11 - 8.4 Measurement Sequence.
11 - 9 PRELIMINARY CHECK AND CALCULATIONS
11 - 9.1 Reproducibility of Loss on Fusion.
11 - 9.2 Acceptability of Background.
12 - 9.3 Correction for Instrumental Drift.
12 - 9.4 Comparison of Duplicate Measurements.
12 - 9.5 Correction for Dead Time Losses.
12 - 9.6 Conversion to Apparent Concentration.
12 - 9.7 Acceptability of Specimens.
13 - 10 CALCULATION OF RESULTS
13 - 10.1 Loss on Fusion.
13 - 10.2 Oxide Components.
15 - 11 GENERAL TREATMENT OF RESULTS.
15 - 11.1 Precision.
15 - 11.2 Acceptance of Analytical Values.
16 - 12 TEST REPORT.
17 - APPENDIX A - PREPARATION OF A MONITOR SPECIMEN
17 - A1 SCOPE.
17 - A2 INTRODUCTION.
17 - A3 PREPARATION OF GLASS FOR MONITOR SPECIMEN.
18 - A4 PREPARATION OF THE MONITOR SPECIMEN.
19 - APPENDIX B - COMPUTER PROGRAM FOR DATA MANIPULATION
19 - B1 SCOPE.
19 - B2 GENERAL.
19 - B3 PROGRAM OPTIONS.
19 - B4 INPUT DATA.
19 - B5 OUTPUT DATA.