Bilateral comparison of calibrations of mass standards

Project Description

The mass and the conventional mass of nine stainless-steel mass standards of 2 mg, 100 mg, 500 mg, 5 g, 50 g, 200 g, 1 kg, 5 kg and 50 kg nominal value will be measured and compared.

INRIM will act as pilot laboratory, will supply the standards and will determine their volume and density before the circulation.

Final Report 2013-07-11

The comparison has been completed and results are published in the KCBD.

The main objective of this bilateral comparison between INRIM-Italy and MCCAA-Malta was to evaluate the uncertainty claimed by MCCAA on the calibration of mass standards.The comparison, piloted by INRIM, was conducted during 2012 on nine mass standards (50 kg, 5 kg, 1 kg, 200 g, 50 g, 5 g, 500 mg, 100 mg and 2 mg). From the calculated degrees of equivalence between the two participants the results reported by the participants are consistent.