Characterization and Uncertainty Estimate of the Total and Individual Ester Contents in Rapeseed Fame Aiming at Conformity Assessment

L.V.F. Gonçalves, P.P. Borges & P.R.G. Couto
The worldwide increasing demand for biomass fuels resulted in a technical cooperation named Biorema. This cooperation allowed Brazil, the European Community and the U.S.A. to evaluate the capacity of their laboratories, which are involved in conformity assessment of fuels, in determining the physical chemical parameters of biodiesel. For this, it was necessary to use procedures established both on standards and also on developed protocols. The total ester content determination in methylic biodiesel (FAME) is of...