Uncertainty Due to Meniscus Reading on Conical Graduated Volumetric Instruments

A method to determine the uncertainty in reading the location of a concave meniscus in conical graduated volumetric instruments (CGVI) is presented. To estimate the meniscus uncertainty contribution in a volumetric instrument, the cross-section area of the meniscus location is required. Although dat...

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Autores principales:	Omar-Jair Purata-Sifuentes, Haidee-Lucia Gonzalez-Gomez, Jose-Alberto Echavarri-Rodriguez, Elvia Funes-Rodriguez
Formato:	article
Lenguaje:	EN
Publicado:	IEEE 2021
Materias:	Centrifuge tube Imhoff cone meniscus reading volume measurement Electrical engineering. Electronics. Nuclear engineering TK1-9971
Acceso en línea:	https://doaj.org/article/df2c49da196b4d49b9dc06aaf0e994d4
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id	oai:doaj.org-article:df2c49da196b4d49b9dc06aaf0e994d4
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spelling	oai:doaj.org-article:df2c49da196b4d49b9dc06aaf0e994d42021-11-18T00:07:52ZUncertainty Due to Meniscus Reading on Conical Graduated Volumetric Instruments2169-353610.1109/ACCESS.2021.3123961https://doaj.org/article/df2c49da196b4d49b9dc06aaf0e994d42021-01-01T00:00:00Zhttps://ieeexplore.ieee.org/document/9592810/https://doaj.org/toc/2169-3536A method to determine the uncertainty in reading the location of a concave meniscus in conical graduated volumetric instruments (CGVI) is presented. To estimate the meniscus uncertainty contribution in a volumetric instrument, the cross-section area of the meniscus location is required. Although data for the internal diameter of several volumetric instruments are available in international standards, they all have cylindrical bodies. Hence, just one internal diameter value is reported for all the readings made on the same apparatus. This work addresses the determination of meniscus reading uncertainty in CGVI through some internal diameters direct measurements made with an optical comparator. The measurements were used to generate cubic splines to interpolate all the other internal diameters required. With the interpolated diameter data, the proposed formulas allow the computation of the meniscus reading contribution, which had a 2 % error at most.Omar-Jair Purata-SifuentesHaidee-Lucia Gonzalez-GomezJose-Alberto Echavarri-RodriguezElvia Funes-RodriguezIEEEarticleCentrifuge tubeImhoff conemeniscus readingvolume measurementElectrical engineering. Electronics. Nuclear engineeringTK1-9971ENIEEE Access, Vol 9, Pp 147801-147808 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Centrifuge tube Imhoff cone meniscus reading volume measurement Electrical engineering. Electronics. Nuclear engineering TK1-9971
spellingShingle	Centrifuge tube Imhoff cone meniscus reading volume measurement Electrical engineering. Electronics. Nuclear engineering TK1-9971 Omar-Jair Purata-Sifuentes Haidee-Lucia Gonzalez-Gomez Jose-Alberto Echavarri-Rodriguez Elvia Funes-Rodriguez Uncertainty Due to Meniscus Reading on Conical Graduated Volumetric Instruments
description	A method to determine the uncertainty in reading the location of a concave meniscus in conical graduated volumetric instruments (CGVI) is presented. To estimate the meniscus uncertainty contribution in a volumetric instrument, the cross-section area of the meniscus location is required. Although data for the internal diameter of several volumetric instruments are available in international standards, they all have cylindrical bodies. Hence, just one internal diameter value is reported for all the readings made on the same apparatus. This work addresses the determination of meniscus reading uncertainty in CGVI through some internal diameters direct measurements made with an optical comparator. The measurements were used to generate cubic splines to interpolate all the other internal diameters required. With the interpolated diameter data, the proposed formulas allow the computation of the meniscus reading contribution, which had a 2 % error at most.
format	article
author	Omar-Jair Purata-Sifuentes Haidee-Lucia Gonzalez-Gomez Jose-Alberto Echavarri-Rodriguez Elvia Funes-Rodriguez
author_facet	Omar-Jair Purata-Sifuentes Haidee-Lucia Gonzalez-Gomez Jose-Alberto Echavarri-Rodriguez Elvia Funes-Rodriguez
author_sort	Omar-Jair Purata-Sifuentes
title	Uncertainty Due to Meniscus Reading on Conical Graduated Volumetric Instruments
title_short	Uncertainty Due to Meniscus Reading on Conical Graduated Volumetric Instruments
title_full	Uncertainty Due to Meniscus Reading on Conical Graduated Volumetric Instruments
title_fullStr	Uncertainty Due to Meniscus Reading on Conical Graduated Volumetric Instruments
title_full_unstemmed	Uncertainty Due to Meniscus Reading on Conical Graduated Volumetric Instruments
title_sort	uncertainty due to meniscus reading on conical graduated volumetric instruments
publisher	IEEE
publishDate	2021
url	https://doaj.org/article/df2c49da196b4d49b9dc06aaf0e994d4
work_keys_str_mv	AT omarjairpuratasifuentes uncertaintyduetomeniscusreadingonconicalgraduatedvolumetricinstruments AT haideeluciagonzalezgomez uncertaintyduetomeniscusreadingonconicalgraduatedvolumetricinstruments AT josealbertoechavarrirodriguez uncertaintyduetomeniscusreadingonconicalgraduatedvolumetricinstruments AT elviafunesrodriguez uncertaintyduetomeniscusreadingonconicalgraduatedvolumetricinstruments
_version_	1718425255067779072

Uncertainty Due to Meniscus Reading on Conical Graduated Volumetric Instruments

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