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
F Delahaye et al 2000 Metrologia 37 659
J-W Chung et al 2000 Metrologia 37 65
M Viliesid et al 2000 Metrologia 37 317
R S Davis 1998 Metrologia 35 49
J Hu et al 1997 Metrologia 34 417
A-M Perroche and M Boutillon 1995 Metrologia 32 43
V I Sapritsky 1995 Metrologia 32 411
V Naggiar 1967 Metrologia 3 51
R S Davis 1992 Metrologia 29 67