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. 2017 May 11;122:1–25. doi: 10.6028/jres.122.024

Table 15.

Calculation of the TS-SRM d220 value.

NW04 d220 t = 22.5 °C, p = 0 Pa 192.015 569 6(10) × 10−12 m
(dTS-SRMdW17)/dW17 (expanded uncertainty) −23(47) × 10−9
(dW17dNW04)/dNW04 11(5) × 10−9
(dTS-SRMdNW04)/dNW04 (expanded uncertainty) −12(47) × 10−9
TS-SRM d220 t = 22.5 °C, p = 0 Pa 192.015 567 3(90) × 10−12 m