In this poster we present the extraction of oil from jatropha seeds in compliance with accuracy and reproducibility requirements described in the EN method. Oil extraction using a Dionex ASE 150 system requires only one to one-and-a-half hours, as compared to nine hours consumed by the Soxhlet extraction. In this research, the effects of the Dionex ASE 150 system conditions on the percentage of oil extracted, the optimum conditions for oilseed extraction, and the minimum amount of oilseeds required per test are also investigated.