Establishing traceability for liquid density measurements in Europe: 17RPT02-rhoLiq a new EMPIR joint research project

Furtado, Andreia; Pereira, J.; Schiebl, M.; Mares, G.; Popa, George Florian; Bartoš, Petr; Bebic, J.; Lenard, E.; Alic, A.; Alisic, S.; Neuvonen, Pekka T.; Wolf, H.; Sariyerli, Gokce Sevim; Bescupschii, A.; Laky, B.

doi:10.1088/1742-6596/1065/8/082013

Cited by 4 publications

(8 citation statements)

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“…Therefore, this method proofed to be suitable to be use in comparison with a commercial oscillation-type density meter (like the one tested in this work) to determine density of liquids against pressure (i.e. to descibe EOS) and to be used for calibration purposes, as recommended by the standard ASTM D7961 [19], being this one of the subjects to be adressed during the lifetime of the EMPIR Joint Research Project 17RPT02 rhoLiq concerning the establishment of traceability for liquid density measurements [10].…”

Section: Discussionmentioning

confidence: 99%

“…This work aimed to provide the basis for the future development of procedures for the calibration of oscillation-type density meters at high-pressures by introducing an alternative calibration methodology to be used as reference, being one of the subjects to be adressed during the lifetime of the EMPIR Joint Research Project 17RPT02 rhoLiq concerning the establishment of traceability for liquid density measurements [10].…”

Section: Introductionmentioning

confidence: 99%

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New apparatus for liquids high-pressure density measurement

Furtado¹,

Lorenz²,

Wolf³

2020

Metrologia

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Nowadays, fast and precise density measurements of fluids are mostly performed using so-called oscillation-type density meters, able to measure in a very wide interval of temperature and pressure. This work aimed to developed, characterized and validated a high-pressure density measurement (HPDM) apparatus ensuring the traceability to SI of density measurements performed with these devices at high pressure (up to 650 bar) with a relative uncertainty of 8.0 × 10–4. The developed HPDM apparatus and methodology are found to be suitable to be used for calibration purposes, as recommended by the standard ASTM D7961, fulfilling this existing gap in density traceability chain.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

New apparatus for liquids high-pressure density measurement

Furtado¹,

Lorenz²,

Wolf³

2020

Metrologia

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“…Temperature of liquid sample is measured SPRT temperature probe (Hart Scientific) which has measurement uncertainty of 0.01 °C and resolution of 0.0001 °C. For the purpose of obtaining best meniscus on liquid sample surface, Pt-Ir wire used, furthermore before the measurement all apparatus are cleaned with ethanol and in order to reduce evaporation of the liquid sample [14].…”

Section: Methodsmentioning

confidence: 99%

New apparatus for the determination of liquid density at primary level in TUBITAK UME

Akcadag

Sariyerli

2022

Int. J. Metrol. Qual. Eng.

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This work aimed to describe the new apparatus of TUBITAK UME for determining the density of liquids at the primary level by means of a hydrostatic weighing (HW) using a solid density standard. This new apparatus provides TUBITAK UME with the necessary infrastructure to certify reference liquids of density with adequate uncertainty to be used at a secondary level, such as for calibration of oscillation type density meters. The HWS produces reference values for liquids with different physical properties such as viscosity, surface tension and viscoelasticity in the case of non-Newtonian liquids. In this HWS, the automation of all mechanical parts such as loading/unloading of the reference weights and sinker, movement of bath, working of pump etc. took place. In this way, the primary level liquid density measurements were realized with uncertainities smaller than 0,01 kg/m3. The automation also effected the robustness of the system by providing the lower repeatability value and stabilization of temperature.

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“…Hydrostatic weighing method could be used as reference alternative; however, this method was not yet studied with viscoelastic samples. This corresponds to one of the objectives of the rhoLiq Project [3].…”

Section: Description Of the Workmentioning

confidence: 99%

“…With the purpose of getting the first insight on how different laboratories handle the density measurements' artefacts caused by the viscoelasticity of non-Newtonian fluids when using oscillation-type density meters, an international comparison was performed, within the scope of the EMPIR Project 17RPT02 rhoLiq [3].…”

Section: Introductionmentioning

confidence: 99%

First density comparison on viscoelastic samples by oscillation-type densimetry

et al. 2020

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To provide a deeper insight about the damping effects produced by the viscoelasticity of non- Newtonian fluids during density measurements with oscillation-type density meters, and about how reference laboratories overcome these effects, an international comparison was performed, within the scope of the EMPIR Project 17RPT02 rhoLiq. The results of the comparison evidenced the possibility to measure density of viscoelastic samples by means of oscillation-type density meters with an uncertainty between 0.10 kg·m-3 and 0.25 kg·m-3. However, these instruments may be able to reach lower uncertainties if compared with higher precision density measurement methods such as hydrostatic weighing.

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Establishing traceability for liquid density measurements in Europe: 17RPT02-rhoLiq a new EMPIR joint research project

Cited by 4 publications

References 0 publications

New apparatus for liquids high-pressure density measurement

New apparatus for liquids high-pressure density measurement

New apparatus for the determination of liquid density at primary level in TUBITAK UME

First density comparison on viscoelastic samples by oscillation-type densimetry

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