BS ISO 21813:2019
$167.15
Fine ceramics (advanced ceramics, advanced technical ceramics). Methods for chemical analysis of high purity barium titanate powders
| Published By | Publication Date | Number of Pages |
| BSI | 2019 | 34 |
This document specifies methods for the chemical analysis of fine high purity barium titanate powders used as the raw material for fine ceramics.
This document stipulates the determination methods of the barium, titanium, aluminium, cadmium, calcium, cobalt, dysprosium, iron, lead, magnesium, manganese, nickel, niobium, potassium, silicon, sodium, strontium, vanadium, zirconium, carbon, oxygen and nitrogen contents in high purity barium titanate powders. The barium and titanium contents, the major elements, are determined by using an acid decomposition-gravimetric method or an acid decomposition-inductively coupled plasma-optical emission spectrometry (ICP-OES) method. The aluminium, cadmium, calcium, chromium, cobalt, dysprosium, iron, lead, magnesium, manganese, nickel, niobium, potassium, silicon, strontium, vanadium and zirconium contents are simultaneously determined via an acid digestion-ICP-OES method. The nitrogen content is determined by using an inert gas fusion-thermal conductivity method, while that of oxygen is determined via an inert gas fusion-IR absorption spectrometry method. Finally, the carbon content is determined using a combustion-IR absorption spectrometry method or a combustion-conductometry method.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | National foreword |
| 7 | Foreword |
| 9 | 1 Scope 2 Normative references 3 Terms and definitions 4 Analytes and ranges |
| 10 | 5 Preparation of test sample 5.1 General 5.2 Sampling 5.3 Drying |
| 11 | 5.4 Weighing 6 Reporting the analytical values 6.1 Number of analyses 6.2 Blank test 6.3 Evaluation of the analytical values 6.4 Expression of the analytical values 7 Determination of the barium and titanium contents 7.1 Classification of the determination methods |
| 12 | 7.2 Acid decomposition-gravimetric method 7.2.1 Principle 7.2.2 Reagents 7.2.3 Apparatus |
| 13 | 7.2.4 Procedure 7.2.5 Blank test 7.2.6 Calculation |
| 14 | 7.3 Acid decomposition-ICP-OES method 7.3.1 Principle 7.3.2 Reagents 7.3.3 Apparatus 7.3.4 Procedure |
| 15 | 7.3.5 Blank test 7.3.6 Drawing of the calibration curve 7.3.7 Calculation 8 Determination of the trace element contents 8.1 Principle 8.2 Reagents 8.2.1 Element standard solutions. |
| 16 | 8.3 Apparatus 8.4 Procedure |
| 17 | 8.5 Blank test 8.6 Drawing of the calibration curve 8.7 Calculation 9 Determination of the total nitrogen content 9.1 Principle 9.2 Reagents |
| 18 | 9.3 Apparatus 9.4 Instrument |
| 19 | 9.5 Procedure 9.5.1 Starting up of the instrument |
| 20 | 9.5.2 Preliminary heating 9.5.3 Degassing of the graphite crucible 9.5.4 Measuring 9.6 Blank test 9.7 Calculation of the calibration coefficient |
| 21 | 9.8 Calculation 10 Determination of the oxygen content 10.1 Principle 10.2 Reagents 10.3 Apparatus 10.4 Instrument 10.5 Procedure |
| 22 | 10.6 Blank test 10.7 Calculation of the calibration coefficient 10.8 Calculation 11 Determination of the carbon content 11.1 Classification of the determination methods 11.2 Combustion (resistance furnace)-IR absorption spectrometry 11.2.1 Principle |
| 23 | 11.2.2 Reagents 11.2.3 Apparatus 11.2.4 Instrument |
| 24 | 11.2.5 Procedure 11.2.6 Blank test 11.2.7 Calculation of the calibration coefficient |
| 25 | 11.2.8 Calculation 11.3 Combustion (radio frequency heating furnace)-thermal conductometry 11.3.1 Principle 11.3.2 Reagents 11.3.3 Apparatus |
| 26 | 11.3.4 Instrument |
| 27 | 11.3.5 Procedure 11.3.6 Blank test 11.3.7 Calculation of the calibration coefficient 11.3.8 Calculation 11.4 Combustion (radio frequency heating furnace)-IR absorption spectrometry 11.4.1 Principle 11.4.2 Reagents 11.4.3 Apparatus |
| 28 | 11.4.4 Instrument 11.4.5 Procedure |
| 29 | 11.4.6 Blank test 11.4.7 Calculation of the calibration coefficient 11.4.8 Calculation 12 Test report |
| 30 | Annex A (informative) Analytical results obtained from the round-robin test |
| 32 | Bibliography |
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ISO 21813:2019
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