| Measured values (%) | Standard deviation (%) | Estimated values (%) |
Fe | 30.42 | 0.304 | 30.66 |
Satmg | 2.500 | 0.250 | 2.496 |
SiO2 | 52.10 | 0.521 | 52.59 |
Al2O3 | 0.700 | 0.120 | 0.557 |
MgO | 0.810 | 0.131 | 0.830 |
CaO | 1.010 | 0.101 | 1.046 |
Na2O | 0.009 | 0.051 | 0.095 |
K2O | 0.100 | 0.060 | 0.177 |
TiO2 | 0.112 | 0.061 | 0.119 |
Mn | 0.062 | 0.056 | 0.071 |
P2O5 | 0.064 | 0.056 | 0.063 |
LOI400 | 0.341 | 0.034 | 0.342 |