北京晶品赛思科技有限公司
| 序号 | 组分 | 标准值 | 不确定度 |
|---|---|---|---|
| 1 | 纯度 | 99.99 | |
| 2 | Bi | <0.2ppm | |
| 3 | Au | <0.2ppm | |
| 4 | Ag | <0.05ppm | |
| 5 | AS | <1.5ppm | |
| 6 | S | <0.5ppm | |
| 7 | Pb | <0.5ppm | |
| 8 | Cd | <1.0ppm | |
| 9 | Zn | <0.5ppm | |
| 10 | Ni | <0.2ppm | |
| 11 | Cu | <0.05ppm | |
| 12 | Mn | <0.05ppm | |
| 13 | Mg | <0.2ppm | |
| 14 | Fe | <0.5ppm |