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Report on EURAMET Project 1214. Density measurement of viscous oils (using vibrating tube density meters).

Davidson, S; Van Andel, I*; Spohr, I*; Joosten, H*; Smits, E*; Fitzgerald, H* (2012) Report on EURAMET Project 1214. Density measurement of viscous oils (using vibrating tube density meters). NPL Report. ENG 39

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Abstract

A comparison of vibrating tube liquid density meters has been undertaken between six measurement laboratories NPL, VSL (density), IPQ, VSL (flow), Mettler-Toledo and H&D Fitzgerald. NPL acted as the pilot laboratory and the density standards were provided by VSL (density). The three reference oils were sent to the participants in October 2011 and measurements were made over the period November 2011 to February 2012. Measurements were made over the temperature range 10 °C to 70 °C by most participants. Seven measurements (out of a total of sixty) were not in agreement with the calculated reference values. Two of these can be accounted for by the high viscosity of one of the samples (Vitrea 220 oil at 10 °C), others may be explained by the different approaches to viscosity correction adopted by the participating laboratories.

Item Type: Report/Guide (NPL Report)
NPL Report No.: ENG 39
Keywords: Density, Viscosity, CRM, Vibrating Tube, Densitometer
Subjects: Engineering Measurements
Engineering Measurements > Mass, Force, Pressure
Last Modified: 02 Feb 2018 13:14
URI: http://eprintspublications.npl.co.uk/id/eprint/5643

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