BS ISO 15634:2015
$102.76
Iron ores. Determination of chromium content. Flame atomic absorption spectrometric method
| Published By | Publication Date | Number of Pages |
| BSI | 2015 | 22 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 6 | Foreword |
| 7 | 1 Scope 2 Normative references 3 Principle 4 Reagents |
| 8 | 5 Apparatus |
| 9 | 6 Sampling and samples 6.1 Laboratory sample 6.2 Preparation of predried test samples |
| 10 | 7 Procedure 7.1 Number of determinations 7.2 Test portion 7.3 Blank test and check test 7.4 Determination 7.4.1 Decomposition of the test portion |
| 11 | 7.4.2 Removal of iron 7.4.3 Treatment of the residue 7.4.4 Preparation of the calibration solutions |
| 12 | 7.4.5 Preparation of the flame setting solution 7.4.6 Adjustment of the atomic absorption spectrometer 7.4.7 Atomic absorption measurements 8 Expression of results 8.1 Calculation of chromium content |
| 13 | 8.2 General treatment of results 8.2.1 Repeatability and permissible tolerance 8.2.2 Determination of analytical result 8.2.3 Between-laboratories precision |
| 14 | 8.2.4 Check for trueness |
| 15 | 8.2.5 Calculation of final result 8.3 Oxide factor for conversion to chromium oxide 9 Test report |
| 16 | Annex A (normative) Flowsheet of the procedure for the acceptance of analytical values for test samples |
| 17 | Annex B (informative) Derivation of repeatability and permissible tolerance equations |
| 18 | Annex C (informative) Precision data obtained by international analytical trial |
| 19 | Bibliography |
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ISO 15634:2015
Iron ores — Determination of chromium content — Flame atomic absorption spectrometric method Published By…
