TY - CONF A1 - Vogl, Jochen T1 - Delta values, Delta zero reference materials and uncertainties N2 - Discussion of Delta values, Delta scales, delta Zero reference materials and measurement uncertainties for delta-values under metrological aspects. T2 - CCQM Isotope Ratio Task Group CY - Delft, Netherlands DA - 27.10.2017 KW - Traceability KW - Measurement uncertainty KW - Delta scale KW - Reference material PY - 2017 AN - OPUS4-42743 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -