Comparison of solid density standards between IMGC and NBS

1 May 1985

journal article
Published by National Institute of Standards and Technology (NIST) in Journal of Research of the National Bureau of Standards

Vol. 90 (3) , 217-227
https://doi.org/10.6028/jres.090.011

Abstract

Solid-object density standards developed independently by the Istituto di Metrologia "G. Colonnetti" (IMGC) and NBS, and traceable to SI units of length and mass, have been compared using a silicon transfer standard. Results agree to approximately 1×10^-6, which is conistent with the uncertainties assigned by the two laboratories.

Keywords

INTERNATIONAL SYSTEM OF UNITS
DENSITY STANDARDS
HYDROSTATIC WEIGHING
INTERNATIONAL COMPARISON
SILICON
VOLUME STANDARDS

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