Primary certification of reference material for electrolytic conductivity of bioethanol

8th Brazilian Congress on Metrology

Da Silva, L.F.^1 ; Gomes, M.R.F.^1 ; Cassini, G.C.^1 ; Faria, A.C.V.^1 ; Fraga, I.C.S.^1

Inmetro - National Metrology Institute, Quality and Technology, Chemical Metrology, Av. Nossa Senhora das Graças, 50, Prédio 4, Xerém, Rio de Janeiro

RJ, Brazil^1

关键词: Certified reference materials;    Electrolytic conductivity;    Metrological traceabilitys;    Reference material;    Use of renewable energies;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/733/1/012027/pdf
DOI  :  10.1088/1742-6596/733/1/012027

来源: IOP

【 摘 要 】

Nowadays the preservation of the planet is spreading into the international scene with the use of renewable energy sources such as bioethanol. The challenge is to guarantee the quality of produced bioethanol, and the electrolytic conductivity (EC) is one of the specified parameters for this purpose. However, is necessary to demonstrate the metrological traceability of the measurement results for EC in this matrix. This study presents the certification of a reference material for EC in bioethanol by using only primary measurements. The value of primary certified reference material (CRM) is (0.77 ± 0.06) μS.cm-1, and its use will provide the metrological traceability needed for measurement results in laboratories.