Analysis of Free and Total Glycerin in B-100 Biodiesel Methyl Esters (ASTM D6584)
Introduction. The American Standard, ASTM D 6584, is the standard test method commonly used for the quantitative determination of free and total glycerin content in Fatty Acid Methyl Esters (FAME), typically intended for pure biodiesel or as a blending component for domestic and diesel fuels. Total glycerol content is calculated from the results obtained. The method is suitable for FAME from rapeseed, sunflower and soybean oils*. A metal capillary GC column was specifically used for this high temperature method.