BS ISO 7524:2020
$102.76
Ferronickels. Determination of carbon content. Infrared absorption method after induction furnace combustion
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 20 |
This document specifies an infrared absorption method after combustion in an induction furnace for the determination of the carbon content in ferronickels in the range of 0,004 % to 2,5 %.
The method is applicable to normal production operations. It uses commercially available equipment, which is calibrated using steel and/or ferronickel certified reference materials (CRMs).
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 | 5.4 Glass-wool. 5.5.1 General 5.5.2 Fluxes 5.5.3 Accelerators 6 Apparatus |
| 9 | 7 Sampling and sample preparation |
| 10 | 8 Procedure 8.1 Preparing and stabilizing the instrument 8.2 Blank test and zero adjustment 8.2.1 Carbon contents ≤ 0,1 % 8.2.2 Carbon contents > 0,1 % |
| 11 | 8.3 Calibration 8.4 Determination |
| 12 | 9 Expression of results 9.1 Calculation 9.2 Precision |
| 14 | 10 Test report |
| 15 | Annex A (informative) Features of commercial high frequency induction furnaces and infrared carbon analysers |
| 16 | Annex B (informative) Composition of the samples used for the validation precision test |
| 17 | Annex C (informative) Graphical representation of the precision data |
| 18 | Bibliography |
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