The SRI BioDiesel GC System is configured to perform ASTM 6584 ( residual free and bound Glycerin in BioFuel ). Analysis takes about 25 minutes and is simple enough for an untrained  operator to perform in the lab or in the field. The included PeakSimple Data System displays the calibrated results directly without off-line calculations. This gas chromatograph satisfies all of the requirements of ASTM 6584 for a fraction of the cost of competitive instruments and includes 4 hours of operator training and a 2 year warranty.