QCRM-4-057Iron Ore (EXPG) hematite – 53.57% Fe; 16.87% Si – Kumba Iron Ore Mine
| Certified values | |||
|---|---|---|---|
| Analytes | Units | Concentrations | Expanded uncertainty |
| Al2O3 | % | 4.14 | ±0.07 |
| CaO | % | 0.132 | ±0.004 |
| Fe | % | 53.57 | ±0.14 |
| K2O | % | 0.400 | ±0.006 |
| LOI | % | 1.24 | ±0.03 |
| MgO | % | 0.056 | ±0.008 |
| Mn | % | 0.032 | ±0.002 |
| Na2O | % | 0.034 | ±0.010 |
| P | % | 0.053 | ±0.002 |
| S | % | 0.016 | ±0.002 |
| SiO2 | % | 16.87 | ±0.15 |
| TiO2 | % | 0.222 | ±0.004 |
QCRM-4-057 is a certified reference material which is suitable for use as random control samples in routine analytical laboratory quality control, when inserted within a batch of samples and measured in parallel to the unknown. The QCRM can also be used as a control sample in the analysis of samples of a similar type, verification of analytical methods for iron ore and as a calibration standard for the calibration of equipment used for analyzing similar materials.
Section 6 of the COA was amended to reflect the preparation of samples to 106-micron, as per the recommendation of ISO 3082:2017. The particle size was previously erroneously stated as 75-micron.
| Weight | 100 g |
|---|
Number of packets: