No. | Item | Standard Specification | ||||
1 | Selenium ≥% | 4N | 5N | 5N | 7N | |
99.99 | 99.999 | 99.999 | 99.9999 | |||
2 | Impurity PPMMax Each | Ag | 1.0 | 0.2 | 0.5 | 0.05 |
Al | 5.0 | 0.5 | 0.5 | 0.05 | ||
Fe | 10 | 0.5 | 0.5 | 0.05 | ||
Mg | 5.0 | 0.5 | 0.5 | 0.05 | ||
Ni | 2.0 | 0.2 | 0.5 | 0.05 | ||
Pb | 5.0 | 0.5 | 1.0 | 0.10 | ||
Te | 10 | 0.5 | 1.0 | 0.10 | ||
Cu | 2.0 | 0.2 | 1.0 | 0.10 | ||
Cd | 5.0 | 0.2 | 0.2 | 0.02 | ||
Bi | 5.0 | 0.5 | 0.2 | 0.02 | ||
In | - | 0.5 | 0.2 | - | ||
Sb/Ca/Hg/Mn | 5 | - | - | - | ||
Total | 100ppm | 10ppm | 10ppm | 1ppm | ||
3 | Size | -100mesh atomized | 1-5mm shot, 1-10mm lump | |||
4 | Packing | 1kg in polyethylene bottle, carton box outside |