Avaliação de laboratórios brasileiros na determinação de alguns parâmetros de qualidade de biocombustíveis
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).
Main Authors: | , , , , , , , , , , , , , , , , , , , , , |
---|---|
Format: | Digital revista |
Language: | Portuguese |
Published: |
Sociedade Brasileira de Química
2013
|
Online Access: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422013000300008 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|