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2. ISO/IEC 17043, Conformity Assessment – General Requirement for Proficiency Testing. (International Standard Organization, Geneva, 2010).
3. S. Bruce, G.F. Strouse, Int. J. Thermophys. 30, 351 (2009). https://doi.org/10.1007/s10765-008-0436-7
4. CIPM MRA-D-04, Calibration and measurement capabilities in the context of the CIPM MRA (International Bureau of Weights and Measures, 2017). https://www.bipm.org/utils/common/documents/CIPM-MRA/CIPM-MRA-D-04.pdf. Accessed 9 Februrary 2021.
5. N.M. Ali, H. Othman, M.-K. Ho et al., Metrologia 54, 03001 (2017). https://doi.org/10.1088/0026-1394/54/1A/03001