北方伟业计量集团有限公司
| 序号 | 组分 | 标准值 | 不确定度 |
|---|---|---|---|
| 1 | Ho | 0.5 | |
| 2 | Dy | 2.4±0.6 | |
| 3 | Tb | 0.42 | |
| 4 | Gd | 3.3±0.9 | |
| 5 | Eu | 1.3±0.5 | |
| 6 | Sm | 3.1±0.3 | |
| 7 | Pr | 4.5±0.5 | |
| 8 | Y | 0.022±0.004 | |
| 9 | Th | 6.8±1.4 | |
| 10 | Rb | 14.2±0.7 | |
| 11 | Cd | 11 | |
| 12 | N | 6.7±0.3 | |
| 13 | Sr | 9.9±0.6 | |
| 14 | Ba | 3.3±0.4 | |
| 15 | Li | 0.062±0.014 | |
| 16 | Be | 3.5±0.6 | |
| 17 | Fe | 139±4 | |
| 18 | Se | 0.022 | |
| 19 | Cl | 0.008±0.002 | |
| 20 | La | 0.023±0.004 | |
| 21 | Bi | 2 | |
| 22 | Ce | 0.040±0.006 | |
| 23 | B | 15.8±1.5 | |
| 24 | Sb | 0.005 | |
| 25 | Mo | 0.71±0.04 | |
| 26 | Nb | 0.011 | |
| 27 | Al | 0.043 | |
| 28 | Ca | 0.153±0.008 | |
| 29 | Si | 0.013 | |
| 30 | Mg | 0.230±0.014 | |
| 31 | Ti | 2.3 | |
| 32 | Mn | 28±1 | |
| 33 | Co | 0.125±0.012 | |
| 34 | Zn | 38±2 | |
| 35 | S | 0.364±0.027 | |
| 36 | As | 0.035±0.012 | |
| 37 | Pb | 0.07±0.02 | |
| 38 | V | 0.08 | |
| 39 | Cu | 10.2±0.5 | |
| 40 | Ni | 4.0±0.3 | |
| 41 | Cr | 0.28±0.04 | |
| 42 | P | 0.66±0.03 | |
| 43 | Nd | 0.016±0.003 |
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