BSI PD ISO/TS 2597-4:2019
$142.49
Iron ores. Determination of total iron content – Potentiometric titration method
| Published By | Publication Date | Number of Pages |
| BSI | 2019 | 32 |
This document specifies a potentiometric titration method for the determination of total iron content of iron ores, using potassium dichromate as titrant after reduction of the iron(III) by tin(II) chloride and titanium(III) chloride. The excess reductant is then oxidized by potassium dichromate solution.
This method is applicable to total iron contents between a mass fraction of 29,04 % and a mass fraction of 72,02 % in natural iron ores and 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 |
| 9 | 6 Apparatus |
| 10 | 7 Sampling and samples 7.1 Laboratory sample 7.2 Preparation of test samples 7.2.1 General 7.2.2 Method specified in ISO 7764 |
| 11 | 7.2.3 Method specified in ISO 2596 8 Procedure 8.1 Number of determinations 8.2 Test portion 8.3 Blank test and check test 8.4 Determination of hygroscopic moisture content 8.5 Determination 8.5.1 Decomposition of the test portion |
| 12 | 8.5.2 Reduction |
| 13 | 8.5.3 Titration 8.5.4 Blank test |
| 14 | 9 Expression of results 9.1 Calculation of total iron content |
| 15 | 9.2 General treatment of results 9.2.1 Repeatability and permissible tolerance 9.2.2 Determination of analytical result 9.2.3 Between-laboratories precision |
| 16 | 9.2.4 Check for trueness |
| 17 | 9.2.5 Calculation of final result 9.2.6 Oxide factors 10 Test report |
| 19 | Annex A (normative) Flowsheet of the procedure for the acceptance of analytical values for test sample |
| 20 | Annex B (informative) Volumetric titration cell and structure of instrument as follows |
| 22 | Annex C (informative) Types of detecting electrode |
| 24 | Annex D (informative) Derivation of precision statements |
| 25 | Annex E (informative) Computer program for end point of titration |
| 28 | Bibliography |
