| Code | SiO<SUB>2</SUB> Mass fraction (10 -2 ) | Al<SUB>2</SUB>O<SUB>3</SUB> Mass fraction (10 -2 ) | Fe<sub>2</sub>O<sub>3</sub> Mass fraction (10 -2 ) | |||
|---|---|---|---|---|---|---|
| Value | Certified Uncertainty | Value | Certified Uncertainty | Value | Certified Uncertainty | |
| GBW03109 | 1.68 | 0.05 | 0.34 | 0.03 | 0.16 | 0.01 |
| GBW03110 | 7.21 | 0.06 | 1.92 | 0.05 | 0.63 | 0.01 |
| GBW03111 | 0.63 | 0.04 | 0.14 | 0.01 | 0.11 | 0.02 |
