P J Allisy-Roberts et al 2009 Metrologia 46 06013 doi:10.1088/0026-1394/46/1A/06013
P J Allisy-Roberts1, C Kessler1,3, D T Burns1, Tian Zhongqing2, Hu Jiacheng2, Yang Xiaoyuan2 and Wang Kun2
Show affiliationsA comparison of the standards for air kerma of the National Institute of Metrology of China and of the Bureau International des Poids et Mesures was carried out in 60Co gamma radiation at the BIPM in December 2001. The ratio of the NIM and the BIPM standards for air kerma is 0.9992, with a combined standard uncertainty of 0.0018.
The degrees of equivalence between the NIM and the other participants in the ongoing key comparison BIPM.RI(I)-K1 have been calculated and the results are presented in the form of a matrix. A graphical presentation is also given.
Main text. To reach the main text of this paper, click on Final Report. Note that this text is that which appears in Appendix B of the BIPM key comparison database kcdb.bipm.org/.
The final report has been peer-reviewed and approved for publication by the CCRI Section I, according to the provisions of the CIPM Mutual Recognition Arrangement (MRA).
Issue 1A (Technical Supplement 2009)
P J Allisy-Roberts et al 2009 Metrologia 46 06013
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