Avaliação de laboratórios brasileiros na determinação de alguns parâmetros de qualidade de biocombustíveis Evaluation of Brazilian laboratories for determining quality parameters of biofuels

This work shows the results of a Proficiency Testing performed by a partnership between INMETRO and ANP. The performance of 49 Brazilian laboratories (using the z-score statistical test) in determining 10 quality parameters of ethanol fuel and biodiesel was evaluated. The certified reference values...

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Published in:Química nova 2013-01, Vol.36 (3), p.393-399
Main Authors: Mary A. Gonçalves, Fabiano B. Gonzaga, Isabel C. S. Fraga, Carla M. Ribeiro, Sidney P. Sobral, Eliane C. P. Rego, Elaine B. Santana, Leonardo M. Oliveira, Viviane F. Silva, Rodrigo V. P. Leal, Dalni M. E. Santo Filho, José R. R. Siqueira, Thales P. Barbosa, Janaína M. Rodrigues, Valnei S. Cunha, Vinícius L. Skrobot, Cristiane B. Costa, Aderson R. Pessoa Júnior, Helena S. P. Carneiro, Helenice Colares, Ednéia Caliman, Márcia V. S. Alves
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Language:English
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biofuels quality parameters
certified reference values
proficiency testing
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container_end_page 399
container_issue 3
container_start_page 393
container_title Química nova
container_volume 36
creator Mary A. Gonçalves
Fabiano B. Gonzaga
Isabel C. S. Fraga
Carla M. Ribeiro
Sidney P. Sobral
Eliane C. P. Rego
Elaine B. Santana
Leonardo M. Oliveira
Viviane F. Silva
Rodrigo V. P. Leal
Dalni M. E. Santo Filho
José R. R. Siqueira
Thales P. Barbosa
Janaína M. Rodrigues
Valnei S. Cunha
Vinícius L. Skrobot
Cristiane B. Costa
Aderson R. Pessoa Júnior
Helena S. P. Carneiro
Helenice Colares
Ednéia Caliman
Márcia V. S. Alves
description This work shows the results of a Proficiency Testing performed by a partnership between INMETRO and ANP. The performance of 49 Brazilian laboratories (using the z-score statistical test) in determining 10 quality parameters of ethanol fuel and biodiesel was evaluated. The certified reference values were provided by INMETRO, allowing a more rigorous assessment of the laboratories. For hydrous ethanol, the acidity parameter showed the lowest number of laboratories with satisfactory results (48%), while 85% of the laboratories presented satisfactory results for ethanol content. For biodiesel, the percentage of laboratories with satisfactory results ranged from 46% (kinematic viscosity) to 92% (acid number).
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subjects biofuels quality parameters
certified reference values
proficiency testing
title Avaliação de laboratórios brasileiros na determinação de alguns parâmetros de qualidade de biocombustíveis Evaluation of Brazilian laboratories for determining quality parameters of biofuels
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