The unit of Mass is realized through an ensemble of three stainless steel primary 1 kg mass standards. Traceability to the international prototype kilogram (IPK) is provided through the German and Austrian national mass standards. The traceability of sub-multiples and multiples of the kilogram in the range 1 mg – 500 kg is ensured through calibration by implementing appropriate weighing designs. Calibrations of mass standards in terms of conventional and true mass and of electronic balances (NAWI’s) values are offered as follows:
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