TY - JOUR A1 - Panne, Ulrich A1 - Bremser, Wolfram T1 - Considerations with regard to the calculation of key comparison reference values and uncertainties JF - Accreditation and quality assurance N2 - Much has been published over the last years on finding the best (consensus) reference value for a given set of key comparison data, and a suite of approaches proposed. In this paper, several aspects are highlighted which should be taken into account when deciding on key comparison strategies, protocols, and the best approach to reliable key comparison reference value and uncertainty. Some of these aspects are briefly discussed. The paper is intended to intensify discussions, and any comments and opinions are welcome. KW - Key comparison KW - Reference value KW - Reference value uncertainty KW - Equivalence PY - 2009 DO - https://doi.org/10.1007/s00769-009-0515-x SN - 0949-1775 SN - 1432-0517 VL - 14 IS - 5 SP - 281 EP - 287 PB - Springer CY - Berlin AN - OPUS4-19460 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -