M T Clarkson et al 2001 Metrologia 38 17 doi:10.1088/0026-1394/38/1/3
M T Clarkson, R S Davis, C M Sutton and J Coarasa
Show affiliationsA method is described to determine the volume of a mass standard from weighings made in air of differing density against a reference volume artefact. Standard uncertainties in volume of 2 parts in 105 (at 1 kg) or better are readily achievable with this method, using adequate measuring facilities. The advantages of the method are that volume determination and mass calibration may be carried out simultaneously and that the mass standard is subjected to a variation in air density of only ±5 % or less, compared with conventional hydrostatic weighing methods where the mass standard is immersed in water. Examples are presented of the use of the method for confirming values assigned to mass standards and for full volume determination, together with uncertainty calculations.
06.20.Dk Measurement and error theory
51.90.+r Other topics in the physics of gases (restricted to new topics in section 51)
Issue 1 (February 2001)
M T Clarkson et al 2001 Metrologia 38 17
R A Nelson et al 2001 Metrologia 38 509
Tomaž Žagar et al 2005 New J. Phys. 7 253
D Stucki et al 2002 New J. Phys. 4 41
J N Milstein et al 2003 New J. Phys. 5 52
Dejan S Milojicic et al 1998 Distrib. Syst. Engng. 5 214
M V Berry 2002 New J. Phys. 4 74
L Hartmann et al 2007 New J. Phys. 9 230
Mohan Kamath and Krithi Ramamritham 1996 Distrib. Syst. Engng. 3 213
Renyue Cen and Jeremiah P. Ostriker 1999 ApJ 514 1