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Table 3

Example 3. FAC-1; 4 measurement systems; Bias trials, Consensus standard = (502 ± 4) nm, (measurement unit = nm.).

Trial index (m) System A System B System C System D
1 503 501 498 499
2 500 502 497 496
3 502 501 500 499
4 501 503 497 496
5 503 500 500 499
6 503 501 496 498
7 501 500 497 497
8 502 502 498 499
9 502 503 495 495
10 501 502 498 498
11 502 501 499 499
12 500 500 498 495
13 501 500 495 499
14 502 501 498 496
15 500 502 499 498
Trials mean & expanded uncertainty by system (nm) {Eqs. (13) & (15)}⁋§⁑ 501.5 ± 2.5 501.3 ± 2.5 497.7 ± 2.8 497.5 ± 2.8

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