Biodiesel is fast becoming an environmentally friendly alternative to petroleum sources. This fuel source is obtained by esterification of oils derived from plants or animals. To meet the demands of this industry, SPEX CertiPrep offers Biodiesel Certified Reference Materials, as well as glyceride and FAME (Fatty Acids Methyl Esters) impurity standards; all designed to save time and money by eliminating the need to prepare in-house standards. Our standards are manufactured from the highest purity starting materials and the highest grade of solvents available to guarantee superior quality. These standards are manufactured in a specially designed laboratory built to eliminate contamination issues that may arise during the manufacturing process. The standards then go through a rigorous QC process where a senior chemist approves each lot. This guarantees the standards are accurate and stable at the stated concentrations for all of the components. In addition, all standards are supplied with a detailed, comprehensive Certificate of Analysis.