聚丙烯树脂灰分的不确定度评定与表示
表1 灰分测量重复性的试验结果
序号 | m1,g | m2,g | m0,g | mash,g | X,mg/Kg |
1 | 99.7394 | 99.7518 | 100.0056 | 0.0124 | 124 |
2 | 101.7963 | 101.8094 | 100.0099 | 0.0131 | 131 |
3 | 97.4363 | 97.4490 | 100.0077 | 0.0127 | 127 |
4 | 104.1039 | 104.1170 | 100.0047 | 0.0129 | 129 |
5 | 97.6140 | 97.6268 | 100.0031 | 0.0128 | 128 |
6 | 97.1358 | 97.1480 | 100.0022 | 0.0122 | 122 |
7 | 101.2351 | 101.2474 | 100.0041 | 0.0123 | 123 |
8 | 97.6142 | 97.6268 | 100.0085 | 0.0126 | 126 |
9 | 98.8842 | 98.897 | 100.0009 | 0.0128 | 128 |
10 | 96.3717 | 96.3842 | 100.0014 | 0.0125 | 125 |
平均值 | 99.1931 | 99.2057 | 100.0048 | 0.0126 | 126 |
标准偏差 | — | — | — | 0.00029 | 2.9 |