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 Instrumentos e Reagentes
4.1 Instrumentos e equipamento
4.1.1 Testing Instruments
| Não. | Nome | Quantidade | Requisitos técnicos | Acessórios |
|---|---|---|---|---|
| 1 | Espetrofotometro de Absorção Atômica de Flame | 1 conjunto | — | Iron Hollow‑Cathode Lamp |
| 2 | Acetileno | 1 cilindro | Purity ≥99.99% | — |
| 3 | Compressor de ar | 1 conjunto | Rated exhaust pressure: 0.3 MPa | — |
