北方伟业计量集团有限公司
| 序号 | 组分 | 标准值 | 不确定度 |
|---|---|---|---|
| 1 | Cd | 0.169 | 0.015 |
| 2 | As | 0.197 | 0.016 |
| 序号 | 组分 | 标准值 | 不确定度 |
|---|---|---|---|
| 1 | Pb | 0.22 | 0.02 |
| 2 | Cd | 0.261 | 0.02 |
| 3 | As | 0.498 | 0.03 |
| 序号 | 组分 | 标准值 | 不确定度 |
|---|---|---|---|
| 1 | I | 0.09 | |
| 2 | Cs | 72±9 | |
| 3 | Br | 0.3 | |
| 4 | Ge | 2.0±0.6 | |
| 5 | Sc | 2.6 | |
| 6 | Na | 10 | |
| 7 | K | 0.07±0.01 | |
| 8 | U | 2 | |
| 9 | Hg | 2.8±0.5 | |
| 10 | Lu | 0.025±0.001 | |
| 11 | Yb | 0.26±0.08 | |
| 12 | Tm | 0.07 | |
| 13 | Er | 0.21±0.06 | |
| 14 | Ho | 0.13±0.04 | |
| 15 | Dy | 0.48±0.14 | |
| 16 | Tb | 0.09 | |
| 17 | Gd | 0.59±0.15 | |
| 18 | Eu | 0.25±0.09 | |
| 19 | Sm | 0.49±0.12 | |
| 20 | Pr | 0.88 | |
| 21 | Y | 0.20±0.03 | |
| 22 | Th | 1.1 | |
| 23 | Rb | 4.0±0.3 | |
| 24 | Cd | 0.19±0.02 | |
| 25 | N | 1.25 | |
| 26 | F | 35 | |
| 27 | Sr | 0.16±0.03 | |
| 28 | Ba | 0.50±0.08 | |
| 29 | Li | 0.050±0.016 | |
| 30 | Be | 2.3±0.4 | |
| 31 | Ag | 0.007 | |
| 32 | Tl | 0.20±0.07 | |
| 33 | Fe | 6.3±0.8 | |
| 34 | Se | 0.053±0.014 | |
| 35 | Cl | 0.025 | |
| 36 | La | 4.5 | |
| 37 | Bi | 6.2±1.4 | |
| 38 | Ce | 7.2±1.8 | |
| 39 | B | 0.58±0.13 | |
| 40 | Sb | 10 | |
| 41 | Mo | 0.89±0.06 | |
| 42 | Sn | 8 | |
| 43 | Nb | 2.7 | |
| 44 | Al | 0.057 | |
| 45 | Ca | 0.010±0.001 | |
| 46 | Si | 0.009 | |
| 47 | Ti | 1.3 | |
| 48 | Mn | 9.0±0.4 | |
| 49 | Co | 12.5±1.6 | |
| 50 | Zn | 14.4±0.8 | |
| 51 | S | 0.12 | |
| 52 | As | 0.11±0.02 | |
| 53 | Pb | 0.070±0.023 | |
| 54 | V | 0.03 | |
| 55 | Cu | 2.4±0.2 | |
| 56 | Ni | 0.31±0.04 | |
| 57 | Cr | 0.14 | |
| 58 | P | 0.10±0.01 | |
| 59 | Nd | 3.5 |
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