Berry, J J; Borys, M*; Firlus, M*; Green, R*; Malengo, A*; Mecke, M*; Meury, P-A*; Zuda, J* (2014) EMRP SIB-05 work package 2. deliverable 2.2.2. analysis of the correlation of sorption coefficients to pressure. NPL Report. ENG 50

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Abstract

This report summarises the results of an analysis of the correlation of sorption coefficients to pressure. Sorption measurements were made between humid air and vacuum pressures ranging from 0.1 Pa to 10-3 Pa using platinum-iridium, silicon and stainless steel artefacts. The mass difference between all the artefacts was found to stay the same over the 0.1 Pa to 10-3 Pa pressure range and therefore consistent mass measurements between primary kilogram realisations can be achieved providing this pressure range is used.

Item Type:	Report/Guide (NPL Report)
NPL Report No.:	ENG 50
Keywords:	mass, sorption, vacuum
Subjects:	Engineering Measurements Engineering Measurements > Mass, Force, Pressure
Last Modified:	02 Feb 2018 13:13
URI:	http://eprintspublications.npl.co.uk/id/eprint/6223

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