北方伟业计量集团有限公司
| 序号 | 组分 | 标准值 | 不确定度 |
|---|---|---|---|
| 1 | Ag | 8 | |
| 2 | Al | 0.18 | 0.03 |
| 3 | As | 0.57 | 0.05 |
| 4 | B | 16.8 | 1.6 |
| 5 | Ba | 20.5 | 2.5 |
| 6 | Be | 50 | 14 |
| 7 | Bi | 14 | 2 |
| 8 | Br | 2.6 | 0.9 |
| 9 | Ca | 0.456 | 0.018 |
| 10 | Cd | 0.042 | 0.01 |
| 11 | Ce | 2.03 | 0.23 |
| 12 | Cl | 0.042 | 0.005 |
| 13 | Co | 0.44 | 0.03 |
| 14 | Cr | 2.2 | 0.4 |
| 15 | Cs | 0.235 | 0.014 |
| 16 | Cu | 8.5 | 0.7 |
| 17 | Dy | 122 | 13 |
| 18 | Er | 60 | 12 |
| 19 | Eu | 32 | 6 |
| 20 | F | 20 | |
| 21 | Fe | 0.113 | 0.007 |
| 22 | Gd | 160 | 18 |
| 23 | Ge | 26 | |
| 24 | Hg | 12 | |
| 25 | Ho | 23 | 4 |
| 26 | I | 0.3 | 0.1 |
| 27 | K | 0.7 | 0.04 |
| 28 | La | 1.07 | 0.09 |
| 29 | Li | 1.25 | 0.12 |
| 30 | Lu | 9 | 3 |
| 31 | Mg | 0.228 | 0.01 |
| 32 | Mn | 33 | 1 |
| 33 | Mo | 5.7 | 0.6 |
| 34 | N | 2.35 | 0.13 |
| 35 | Na | 0.146 | 0.019 |
| 36 | Nd | 0.9 | 0.11 |
| 37 | Ni | 2.26 | 0.15 |
| 38 | P | 0.225 | 0.012 |
| 39 | Pb | 1.44 | 0.1 |
| 40 | Pr | 231 | 28 |
| 41 | Rb | 10.5 | 0.5 |
| 42 | S | 0.193 | 0.012 |
| 43 | Sb | 0.063 | 0.014 |
| 44 | Sc | 0.3 | |
| 45 | Se | 0.071 | 0.024 |
| 46 | Si | 0.71 | |
| 47 | Sm | 172 | 13 |
| 48 | Sn | 0.1 | |
| 49 | Sr | 51 | 3 |
| 50 | Tb | 22 | 2 |
| 51 | Th | 0.3 | 0.04 |
| 52 | Ti | 102 | 11 |
| 53 | Tl | 51 | 6 |
| 54 | Tm | 8.8 | 1.8 |
| 55 | U | 122 | 14 |
| 56 | V | 2.56 | 0.32 |
| 57 | Y | 0.6 | 0.1 |
| 58 | Yb | 62 | 19 |
| 59 | Zn | 22.3 | 1 |
| 60 | 灰分 | 5.16 |
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