| Code | C Mass fraction (10 -2 ) | Fe Mass fraction (10 -2 ) | Si Mass fraction (10 -2 ) | |||
|---|---|---|---|---|---|---|
| Value | Certified Uncertainty | Value | Certified Uncertainty | Value | Certified Uncertainty | |
| GBW02501 | 0.013 | 0.001 | 0.473 | 0.008 | 0.28 | 0.01 |
| GBW02502 | 0.0123 | 0.0004 | 0.057 | 0.006 | 0.275 | 0.005 |
| GBW(E)020034 | 0.022 | 0.002 | 0.485 | 0.004 | 0.33 | 0.01 |
