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AS 2503.1-2006
$125.14
Refractories and refractory materials — Chemical analysis, Part 1: Silica refractories
Sets out methods for the sampling, preparation of samples and analysis of silica refractories and refractory materials
Table of contents
Header
About this publication
Preface
1 Scope and general
1.1 Scope
1.2 Referenced documents
1.3 Definitions
1.4 Repeatability
1.5 Principle
1.5.1 Loss on ignition
1.5.2 Determination of silicon dioxide and phosphorus pentoxide (see Section 4)
1.5.3 Determination of aluminium, iron, titanium and manganese oxides (see Section 5)
1.5.4 Determination of calcium, magnesium, sodium, potassium and lithium oxides (see Section 6)
1.6 Safety
1.7 Test report
2 Sampling and sample preparation
2.1 Scope of section
2.2 Gross sampling
2.3 Preparation of sample
2.3.1 Crushing
2.3.1.1 Bricks
2.3.1.2 Ground materials
2.3.2 Preliminary treatment
2.3.3 Preparation of sample for analysis
2.3.3.1 Portion A—to be used for the main analysis
2.3.3.2 Portion B—to be used where iron determination is required
3 Determination of loss on ignition
3.1 Scope of Section
3.2 Apparatus
3.2.1 Balance
3.2.2 Muffle furnace
3.2.3 Drying oven
3.3 Procedure
4 Determination of silicon dioxide and phosphorus pentoxide
4.1 Scope of section
4.2 Reagents
4.2.1 General
4.2.2 Solid reagents
4.2.2.1 Potassium carbonate/sodium carbonate, anhydrous, mixed in equimolecular proportions
4.2.2.2 Potassium pyrosulfate
4.2.2.3 Sodium carbonate, anhydrous
4.2.3 Solutions
4.2.3.1 Ammonia solution (ρ20 0.88 g/mL)
4.2.3.2 Ammonia solution (500 mL/L)
4.2.3.3 Ammonium metavanadate solution (2.5 g/L)
4.2.3.4 Ammonium molybdate solution (100 g/L)
4.2.3.5 Hydrochloric acid (ρ20 1.18 g/mL)
4.2.3.6 Hydrochloric acid (500 mL/L)
4.2.3.7 Hydrochloric acid (200 mL/L)
4.2.3.8 Hydrochloric acid (50 mL/L)
4.2.3.9 Hydrofluoric acid (p20 1.13 g/mL)
4.2.3.10 Nitric acid (ρ20 1.4 g/mL)
4.2.3.11 Nitric acid (330 mL/L)
4.2.3.12 Sulfuric acid (500 mL/L)
4.2.3.13 Tin(II) chloride solution (10 g/L)
4.2.4 Standard solutions
4.2.4.1 Phosphorus solution (1 mL ≡ 1.0 mg of P2O5)
4.2.4.2 Phosphorus solution (1 mL ≡ 0.025 mg of P2O5)
4.2.4.3 Silicon solution (1 mL ≡ 0.5 mg SiO2)
4.2.4.4 Silicon solution (1 mL ≡ 0.04 mg SiO2)
4.2.5 Indicator
4.3 Apparatus
4.3.1 Balance
4.3.2 Furnace
4.3.3 Drying oven
4.3.4 Steam bath
4.3.5 Glassware
4.3.6 Platinum dish
4.3.7 UV-Visible spectrophotometer
4.4 Procedure
4.4.1 Blank determination
4.4.2 Preparation of sample solution
4.4.3 Determination of silicon dioxide
4.4.3.1 Gravimetric determination of insoluble silicon dioxide
4.4.3.2 Spectrometric determination of soluble silicon dioxide
4.4.3.3 Calculation of total silicon dioxide content
4.4.4 Determination of phosphorus pentoxide
5 Determination of aluminium, iron, titanium and manganese oxides
5.1 Scope of section
5.2 Reagents
5.2.1 General
5.2.2 Solid reagents
5.2.2.1 Sodium carbonate (Na2CO3), anhydrous
5.2.2.2 Boric acid
5.2.3 Solutions
5.2.3.1 Hydrochloric acid (ρ20 1.18 g/mL)
5.2.3.2 Hydrochloric acid (500 mL/L)
5.2.3.3 Hydrofluoric acid ρ20 1.13 g/mL
5.2.3.4 Sulfuric acid (500 mL/L)
5.2.3.5 Ammonia solution ρ20 0.88g/mL
5.2.3.6 Ammonium acetate buffer solution
5.2.3.7 Ammonium acetate buffer solution (400 g/L)
5.2.3.8 Ammonium acetate buffer solution (100 g/L)
5.2.3.9 Ammonium persulfate solution (100 g/L)
5.2.3.10 Base solution
5.2.3.11 Chloroform
5.2.3.12 Cupferron solution (60 g/L)
5.2.3.13 Ethanol or industrial alcohol (950 mL/L)
5.2.3.14 Hydrogen peroxide solution (60 g/L)
5.2.3.15 Hydroxylammonium chloride solution (500 g/L)
5.2.3.16 Hydroxylammonium chloride solution (100 g/L), prepared from 5.2.3.15.
5.2.3.17 8-Hydroxyquinoline solution (50 g/L)
5.2.3.18 Perchloric acid (ρ20 1.54 g/mL)
5.2.3.19 1,10-Phenanthroline solution (10 g/L)
5.2.3.20 Phosphoric acid (400 mL/L)
5.2.3.21 Sodium nitrite solution (50 g/L)
5.2.3.22 Sorbitol solution (80 g/L)
5.2.4 Standard solutions
5.2.4.1 Aluminium solution (1 mL ≡ 1.0 mg of Al2O3)
5.2.4.2 Iron(III) solution (1 mL ≡ 1.0 mg of Fe2O3)
5.2.4.3 Iron(III) solution (1 mL ≡ 0.01 mg of Fe2O3)
5.2.4.4 Manganese(II) solution (1mL ≡ 1.0 mg of MnO)
5.2.4.5 Manganese(II) solution (1 mL ≡ 0.01 mg of MnO)
5.2.4.6 Titanium(IV) solution (1mL ≡ 0.8 mg TiO2)
5.2.4.7 Titanium(IV) solution (1mL ≡ 0.08 mg TiO2)
5.2.4.8 Zinc solution (0.05 mol/L)
5.2.4.9 EDTA solution (0.05 mol/L approx.)
5.2.5 Indicators
5.2.5.1 Dithizone solution (0.25 g/L)
5.2.5.2 Methyl orange solution (0.5 g/L)
5.2.5.3 Methyl red solution (1 g/L)
5.3 Apparatus
5.3.1 Balance
5.3.2 Furnace
5.3.3 Drying oven
5.3.4 Glassware Grade A volumetric glassware
5.3.5 Platinum dish
5.3.6 Spectrophotometer
5.4 Procedure
5.4.1 Preliminary procedures
5.4.1.1 Blank determination
5.4.1.2 Solution of the sample
5.4.2 Determination of aluminium oxide
5.4.2.1 Introduction
5.4.2.2 Removal of iron(III) and titanium(IV) dioxide
5.4.2.3 Gravimetric determination
5.4.2.4 Volumetric determination
5.4.3 Determination of iron(III) oxide
5.4.4 Determination of titanium(IV) dioxide
5.4.5 Determination of manganese(II) oxide
6 Determination of calcium, magnesium, sodium, potassium and lithium oxides
6.1 Scope of section
6.2 Reagents
6.2.1 General
6.2.2 Solutions
6.2.2.1 Ammonia solution
6.2.2.2 Hydrochloric acid
6.2.2.3 Hydrofluoric acid
6.2.2.4 Nitric acid
6.2.2.5 Perchloric acid
6.2.2.6 Potassium hydroxide solution (250 g/L)
6.2.2.7 Triethanolamine solution (500 mL/L)
6.2.3 Standard solutions
6.2.3.1 Calcium solution (1 mL ≡ 1.0 mg of CaO)
6.2.3.2 Magnesium solution (1 mL ≡ 1.0mg of MgO)
6.2.3.3 EDTA solution (0.01 mol/L approximately)
6.2.4 Indicators
6.2.4.1 Methyl thymol blue complexone
6.2.4.2 Screened calcein
6.3 Apparatus
6.3.1 Balance
6.3.2 Drying oven
6.3.3 Steam bath
6.3.4 Glassware
6.3.5 Platinum dish
6.3.6 Flame photometer
6.4 Procedure
6.4.1 Preliminary procedures
6.4.1.1 Blank determination
6.4.1.2 Solution of the sample
6.4.2 Oxide determinations
6.4.2.1 Calcium oxide
6.4.2.2 Magnesium oxide
6.4.2.3 Sodium, potassium and lithium oxides
Appendix A
A1 Ignition loss, P2O5 and SIO2
A2 Al2O3, Fe2O, TiO2, MnO
A3 CaO, MgO, Na2O, K2O, Li2O
Cited references in this standard
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| Published | 30/06/2006 |
|---|---|
| Pages | 26 |
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