1 Method Overview After the sample is digested with aqua regia, the measurement is performed using an air‑acetylene flame at the instrument wavelength of 248.3 nm.
2 Scope of Application This method is applicable to the determination of iron in graphite powder.
3 Reference Basis GB/T 24533‑2009
4 Instruments et réactifs
4.1 Instruments et équipements
4.1.1 Testing Instruments
| - Non, non. | Nom | Quantité | Exigences techniques | Accessoires |
|---|---|---|---|---|
| 1 | Spectrophotomètre d'absorption atomique de flamme | 1 ensemble | — | Iron Hollow‑Cathode Lamp |
| 2 | Acetylène | 1 cylindre | Purity ≥99.99% | — |
| 3 | Compresseur d'air | 1 ensemble | Rated exhaust pressure: 0.3 MPa | — |
