BS 7020-5.1:1993
$86.31
Analysis of iron ores. Methods for the determination of silicon content – Gravimetric methods
| Published By | Publication Date | Number of Pages |
| BSI | 1993 | 14 |
This part of ISO 2598 specifies two gravimetric methods for the determination of the silicon content of iron ores.
These methods are applicable, with certain limitations, to silicon contents between 1 % (m/m) and 15 % (m/m) in natural iron ores, iron ore concentrates and agglomerates, including sinter products.
Method 1 is not applicable to iron ores having a content of reducing agents greater than 2 % (m/m), for instance pyrite, or to ores having a fluorine content greater than 0,1 % (m/m). It is recommended for lower grade ores having a high content of amphoteric elements.
Method 2 can be used for ores having a fluorine content greater than 0,1 % (m/m). It is recommended for high grade ores having a low content of gangue.
NOTE 1 For ores having a silicon content less than 5 % (m/m), the method specified in ISO 2598-2:–1), Iron ores – Determination of silicon content – Part 2: Reduced molybdosilicate spectrophotometric method, is preferable.
Two methods for the determination of silicon contents between 1% (m/m) and 15% (m/m) (with certain limitations) of iron ores.
