BSI PD ISO/TR 4688-1:2017
$102.76
Iron ores. Determination of aluminium – Flame atomic absorption spectrometric method
| Published By | Publication Date | Number of Pages |
| BSI | 2017 | 22 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | National foreword |
| 6 | Foreword |
| 7 | 1 Scope 2 Normative references 3 Terms and definitions 4 Principle 5 Reagents |
| 8 | 6 Apparatus |
| 9 | 7 Sampling and samples 7.1 Laboratory sample 7.2 Preparation of predried test samples 8 Procedure 8.1 Number of determinations |
| 10 | 8.2 Test portion 8.3 Blank test and check test 8.4 Determination 8.4.1 Decomposition of the test portion 8.4.2 Treatment of the residue 8.4.3 Preparation of the test solution |
| 11 | 8.4.4 Adjustment of the atomic absorption spectrometer 8.4.5 Atomic absorption measurements |
| 12 | 9 Expression of results 9.1 Calculation of mass fraction of aluminium 9.2 General treatment of results 9.2.1 Repeatability and permissible tolerance |
| 13 | 9.2.2 Determination of analytical result 9.2.3 Between-laboratories precision 9.2.4 Check for trueness |
| 14 | 9.2.5 Calculation of final result |
| 15 | 9.3 Oxide factor 10 Test report |
| 16 | Annex A (informative) Flowsheet of the procedure for the acceptance of analytical values for test samples |
| 17 | Annex B (informative) Derivation of repeatability and permissible tolerance formulae |
| 18 | Annex C (informative) Precision data obtained by international analytical trials |
| 19 | Bibliography |
