Abstract
In 2003, the CCRI(II) decided that an indirect comparison of 18F measurements piloted by the National Physical Laboratory (NPL), UK in 2001 was sufficiently well constructed that it could be converted into a CCRI(II) comparison, with comparison identifier CCRI(II)-K3.F-18. At the same time, the pilot laboratory made a bilateral comparison with the institute in Chinese Taipei, comparison identifier APMP.RI(II)-K3.F-18. The results of the comparisons have been reported and the key comparison working group (KCWG) of the CCRI(II) has approved the mechanism to link all the results to the key comparison reference value (KCRV) of 18F. The KCRV has been determined through the International Reference System (SIR) for activity comparison at the Bureau International des Poids et Mesures (BIPM), with comparison identifier BIPM.RI(II)-K1.F-18. These comparisons have enabled a further four results to be added to the matrix of degrees of equivalence for 18F activity measurements.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 Section II of the Consultative Committee for Ionizing Radiation (CCRI(II)), according to the provisions of the Mutual Recognition Arrangement (MRA).
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