BSI PD ISO/TS 4689-1:2023
$102.76
Iron ores. Determination of sulfur content – Barium sulfate gravimetric method
| Published By | Publication Date | Number of Pages |
| BSI | 2023 | 22 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | National foreword |
| 6 | Foreword |
| 7 | Introduction |
| 9 | 1 Scope 2 Normative references 3 Terms and definitions 4 Principle |
| 10 | 5 Reagents 5.2 Calcium carbonate. 5.7 Ethanol (ethyl). 6 Apparatus |
| 11 | 7 Sampling and samples 7.1 Laboratory sample 7.2 Preparation of test samples 7.2.1 General 7.2.2 Ores having significant contents of combined water or oxidizable compounds 7.2.3 Ores outside the scope of 7.2.2 8 Procedure 8.1 Number of determinations 8.2 Blank test and check test |
| 12 | 8.3 Test portion 8.4 Determination 8.4.1 Decomposition of the test portion 8.4.2 Separation |
| 13 | 8.4.3 Precipitation of barium sulfate 8.4.4 Weighing 9 Expression of results 9.1 Calculation of sulfur content |
| 14 | 9.2 General treatment of results 9.2.1 Repeatability and permissible tolerance 9.2.2 Check for trueness |
| 15 | 9.2.3 Calculation of final result |
| 16 | 10 Test report |
| 17 | Annex A (normative) Flow sheet of the procedure for the acceptance of analytical values for test samples |
| 18 | Annex B (informative) Derivation of repeatability and permissible tolerance equations |
| 19 | Annex C (informative) Precision data obtained by interlaboratory analytical trial |
| 20 | Annex D (informative) Filter device diagram |
| 21 | Bibliography |
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