Final report on the CCM key comparison of kilogram realizations CCM.M-K8.2021

Stock, Michael; Conceicao, Pedro; Fang, Hao; Bielsa, Franck; Kiss, Adrien; Nielsen, Lars; Beaudoux, F.; Espel, Patrick; Thomas, Matthieu; Ziane, Djamel; Baumann, Henri; Eichenberger, Ali; Marti, Kilian; Bai, Yang; Hu, Manhong; Li, Zhengkun; Lu, Yunfeng; Peng, Cheng; Wang, Jian; Wang, Yue; Wu, Di; Abbott, Patrick; Haddad, Darine; Zubarych, Zeina; Mulhern, Edward; Newell, David; Schlamminger, Stephan; Fujita, Kazuaki; Inaba, Hajime; Kano, Yuya; Kuramoto, Naoki; Mizushima, Shigeki; Okubo, Sho; Ota, Yuichi; Zhang, Lulu; Davidson, Stuart; Green, Richard G.; Liard, Jacques O.; Murnaghan, Nathan F.; Wood, Barry M.; Borys, Michael; Eppers, Daniela; Knopf, Dorothea; Kuhn, Eva; Hämpke, Michael; Müller, Matthias; Nicolaus, Arnold; Scholz, Frank; Spoors, Marek; Ahmedov, Haji

doi:https://doi.org/10.1088/0026-1394/60/1A/07003

Zugriffsnummer	49362
Dokumenttyp	Zeitschriftenartikel
Peer Review	mit Peer Review
Sprache	Englisch
Titel	Final report on the CCM key comparison of kilogram realizations CCM.M-K8.2021
Autor(in); Institution	Stock, Michael; Bureau International des Poids et Mesures (BIPM), Sevres, FRANCE Conceicao, Pedro; Bureau International des Poids et Mesures (BIPM), Sevres, FRANCE Fang, Hao; Bureau International des Poids et Mesures (BIPM), Sevres, FRANCE Bielsa, Franck; Bureau International des Poids et Mesures (BIPM), Sevres, FRANCE Kiss, Adrien; Bureau International des Poids et Mesures (BIPM), Sevres, FRANCE Nielsen, Lars; Danish Institute of Fundamental Metrology (DFM), Horsholm, DENMARK Beaudoux, F.; Laboratoire National de Metrologie et d'Essais (LNE), Paris, FRANCE Espel, Patrick; Laboratoire National de Metrologie et d'Essais (LNE), Paris, FRANCE Thomas, Matthieu; Laboratoire National de Metrologie et d'Essais (LNE), Paris, FRANCE Ziane, Djamel; Laboratoire National de Metrologie et d'Essais (LNE), Paris, FRANCE Baumann, Henri; Federal Institute of Metrology (METAS), Bern-Wabern, SWITZERLAND Eichenberger, Ali; Federal Institute of Metrology (METAS), Bern-Wabern, SWITZERLAND Marti, Kilian; Federal Institute of Metrology (METAS), Bern-Wabern, SWITZERLAND Bai, Yang; National Institute of Metrology (NIM), Beijing, CHINA Hu, Manhong; National Institute of Metrology (NIM), Beijing, CHINA Li, Zhengkun; National Institute of Metrology (NIM), Beijing, CHINA Lu, Yunfeng; National Institute of Metrology (NIM), Beijing, CHINA Peng, Cheng; National Institute of Metrology (NIM), Beijing, CHINA Wang, Jian; National Institute of Metrology (NIM), Beijing, CHINA Wang, Yue; National Institute of Metrology (NIM), Beijing, CHINA Wu, Di; National Institute of Metrology (NIM), Beijing, CHINA Abbott, Patrick; National Institute of Standards and Technology (NIST), Gaithersburg, USA Haddad, Darine; National Institute of Standards and Technology (NIST), Gaithersburg, USA Zubarych, Zeina; National Institute of Standards and Technology (NIST), Gaithersburg, USA Mulhern, Edward; National Institute of Standards and Technology (NIST), Gaithersburg, USA Newell, David; National Institute of Standards and Technology (NIST), Gaithersburg, USA Schlamminger, Stephan; National Institute of Standards and Technology (NIST), Gaithersburg, USA Fujita, Kazuaki; National Metrology Institute of Japan (NMIJ), Tsukaba, JAPAN Inaba, Hajime; National Metrology Institute of Japan (NMIJ), Tsukaba, JAPAN Kano, Yuya; National Metrology Institute of Japan (NMIJ), Tsukaba, JAPAN Kuramoto, Naoki; National Metrology Institute of Japan (NMIJ), Tsukaba, JAPAN Mizushima, Shigeki; National Metrology Institute of Japan (NMIJ), Tsukaba, JAPAN Okubo, Sho; National Metrology Institute of Japan (NMIJ), Tsukaba, JAPAN Ota, Yuichi; National Metrology Institute of Japan (NMIJ), Tsukaba, JAPAN Zhang, Lulu; National Metrology Institute of Japan (NMIJ), Tsukaba, JAPAN Davidson, Stuart; National Physical Laboratory (NPL), Teddington, UK Green, Richard G.; National Research Council of Canada (NRC), Ottawa, CANADA Liard, Jacques O.; National Research Council of Canada (NRC), Ottawa, CANADA Murnaghan, Nathan F.; National Research Council of Canada (NRC), Ottawa, CANADA Wood, Barry M.; National Research Council of Canada (NRC), Ottawa, CANADA Borys, Michael; 1.1, Masse, PTB-Braunschweig Eppers, Daniela; 1.1, Masse, PTB-Braunschweig Knopf, Dorothea; 1.1, Masse, PTB-Braunschweig Kuhn, Eva; 5.4, Interferometrie an Maßverkörperungen, PTB-Braunschweig Hämpke, Michael; 1.1, Masse, PTB-Braunschweig Müller, Matthias; 7.2, Röntgenmesstechnik mit Synchrotronstrahlung, PTB-Berlin Nicolaus, Arnold; 5.4, Interferometrie an Maßverkörperungen, PTB-Braunschweig Scholz, Frank; 1.1, Masse, PTB-Braunschweig Spoors, Marek; 1.1, Masse, PTB-Braunschweig Ahmedov, Haji; Tübitak UME, Gebze Kocaeli, TURKEY
Quelle/Jahr	Metrologia: 60 (2023), 1A, Tech. Suppl., 26 S.
Artikelnummer	07003
Availability	[online only]
ISSN	0026-1394
DOI	https://doi.org/10.1088/0026-1394/60/1A/07003
URL	https://iopscience.iop.org/article/10.1088/0026-1394/60/1A/07003
Verlag	Bristol: IOP Publishing
Freie Schlagworte	SI ; kilogram ; Kibble balance ; Joule balance ; XRCD method
Zusammenfassung	This report describes the second CCM key comparison of realizations of the kilogram definition based on the fixed numerical value of the Planck constant, which came into force on 20 May 2019. The objectives were to determine the level of agreement between realizations of the kilogram using Kibble and joule balances and the x-ray crystal density (XRCD) method and to provide input for the calculation of the second "consensus value" of the kilogram. The consensus value serves as the basis for an internationally coordinated dissemination of the kilogram and is updated after each new key comparison. Its use will continue until satisfactory agreement between realization experiments has been achieved. Another objective was the determination of the reproducibility of the realization experiments by comparing the new results with those of the first key comparison of kilogram realizations, CCM.M-K8.2019. The comparison was organized by the BIPM and had nine participants. The BIPM, LNE, METAS, NIST, NRC and UME operated Kibble balances, the NIM used a joule balance and the NMIJ and the PTB participated using 28Si spheres, the masses of which were determined with the XRCD method. These realization methods were used to calibrate 1 kg mass standards under vacuum or in air. The standards were sent to the BIPM where they were compared with each other and with BIPM Pt-Ir working standards. The latter were calibrated traceable to the International Prototype of the Kilogram (IPK), the mass of which served as the definition of the kilogram until 20 May 2019. The results of the weighings at the BIPM together with the measurement results communicated by the participants allowed comparison of the values attributed to 1 kg mass standards using the realization experiments of the participants. The level of agreement between mass determinations with the realization experiments and the BIPM as-maintained mass unit, traceable to the Planck constant through the mass of the International Prototype of the Kilogram, could also be deduced.

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Stock, M., Conceicao, P., Fang, H., Bielsa, F., Kiss, A., Nielsen, L., Beaudoux, F., Espel, P., Thomas, M., Ziane, D., Baumann, H., Eichenberger, A., Marti, K., Bai, Y., Hu, M., Li, Z., Lu, Y., Peng, C., Wang, J., Wang, Y., Wu, D., Abbott, P., Haddad, D., Zubarych, Z., Mulhern, E., Newell, D., Schlamminger, S., Fujita, K., Inaba, H., Kano, Y., Kuramoto, N., Mizushima, S., Okubo, S., Ota, Y., Zhang, L., Davidson, S., Green, R. G., Liard, J. O., Murnaghan, N. F., Wood, B. M., Borys, M., Eppers, D., Knopf, D., Kuhn, E., Hämpke, M., Müller, M., Nicolaus, A., Scholz, F., Spoors, M., & Ahmedov, H. (2023). Final report on the CCM key comparison of kilogram realizations CCM.M-K8.2021. Metrologia, 60(1A, Tech. Suppl.), 26 S. https://doi.org/10.1088/0026-1394/60/1A/07003

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