BSI PD ISO/TS 21826:2020
$167.15
Iron ores. Determination of total iron content. EDTA photometric titration method
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 34 |
This document specifies a photometric titration method using EDTA for the determination of the total iron content of iron ores.
This method is applicable to a concentration range of a mass fraction of 37,00 % to 72,00 % of total iron in natural iron ores, iron ore concentrates and agglomerates, including sinter products.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | undefined |
| 6 | Foreword |
| 7 | 1 Scope 2 Normative references 3 Terms and definitions 4 Principle |
| 8 | 5 Reagents |
| 11 | 6 Apparatus 7 Sampling and samples 7.1 Laboratory sample |
| 12 | 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 Procedures 8.1 Number of determinations 8.2 Test portion 8.3 Blank test |
| 13 | 8.4 Determination 8.4.1 Decomposition of the test portion 8.4.2 Titration 8.5 Procedure of blank test |
| 14 | 9 Expression of results 9.1 Calculation of total iron content 9.2 General treatment of results 9.2.1 Repeatability and permissible tolerance |
| 15 | 9.2.2 Methods for checking the acceptability of the test results and determining the final quoted result 9.2.3 Between-laboratories precision 9.2.4 Check for trueness |
| 16 | 9.2.5 Calculation of final result 9.3 Oxide factors |
| 17 | 10 Test report |
| 18 | Annex A (informative) Flowsheet of the procedure for the acceptance of analytical values for test samples |
| 19 | Annex B (informative) Typical titration curves |
| 21 | Annex C (informative) Titration parameters for reference |
| 32 | Bibliography |
