DETERMINATION OF THE EVAPORATION FACTOR OF ETHANOL AND ITS CONTRIBUTION TO THE MEASUREMENT UNCERTAINTY IN THE DEVELOPMENT OF A CERTIFIED REFERENCE MATERIAL

Vanderléa de Souza, Janaína Marques R. Caixeiro, Renata M. H. Borges, Paulo R. Guimarães Couto, Rafael A . L. da Silva, Leandro R. Pedro, Thiago M. Fernandes

Abstract

This work presents the determination of the evaporation factor of ethanol and the contribution of this source of uncertainty in the process of certifying a reference material composed of solutions of ethanol in water. For this purpose, an experiment involving three technicians was carried out, where each one of them performed measurements during two days. Since the certification process is based on the gravimetric preparation of solutions by two different methodologies: individual and batch, the evaporation experiments involved measurements that complied both methodologies.

Keywords

traceability, uncertainty, alcohol, ethanol

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PWC-2006-TC8-006u.pdf

DOI

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IMEKO TC

TC8 - Traceability in Metrology

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